KR102026048B1 - Portable fan for clean zone formation using air curtain - Google Patents

Abstract

According to the present invention, a portable fan with a clean zone formation method using an air curtain comprises: a filter housing provided with an inlet of air, in which a plurality of filters are stored; a main body constituting an appearance along with the filter housing, wherein an inner pass portion spatially connected to the filters and an outer pass portion covering the inner pass portion are formed as independent spaces; and a double inlet fan coupled to one side of the main body to independently generate air flow of the inner pass portion and air flow of the outer pass portion. Moreover, a two-way type air discharge structure in which purified air discharged to the inner pass portion and blown air discharged to the outer pass portion each forms a clean area and an external air blocking area can be formed.

Description

Portable fan for clean zone formation using air curtain {Portable fan for clean zone formation using air curtain}

The present invention relates to a portable electric fan that is made small in size so that a user can easily carry it, and specifically, an inlet fan composed of a double blade and a filter that can filter out foreign matters are installed therein to block outside air of poor air quality. The present invention relates to a portable fan of a clean area forming method using an air curtain capable of supplying clean air to a user in a state.

Particularly, the present invention generates air curtains in the form of enclosing the clean area while supplying the clean air purified by the filter to the clean area formed in the longitudinal direction, thereby forming the outside air blocking area on the outside of the clean area, thereby blowing air and The present invention relates to a portable fan of a clean area forming method using a two-way air curtain that simultaneously supplies purification.

In recent years, due to rapid urbanization and the increase of vehicles, air pollution such as soot, yellow dust, and fine dust has become more and more serious. As the air quality worsens, modern people are exposed to various disease risks such as various skin diseases, respiratory diseases, and reduced immunity, and if this phenomenon persists, it may spread as an uncontrollable social problem in the future.

As a countermeasure, many companies are developing various types of air cleaners, negative ion generators, oxygen generators, etc. to purify indoor air, and control air pollution by regulating the total amount of various pollutants in each country. Doing. However, there is a limit to controlling the emission of pollutants through the development of such devices or the legal system, and the reality is that self-preparation should be made to minimize the damage from these pollutants and lead a healthy life.

In particular, the indoor space in which human beings live mainly adds pollutants generated from various electronic devices such as various decorative materials, computers, or portable terminals, thereby seriously contaminating indoor air. Indoor air cleaners are widely used as a means to clean up the indoor air pollution.

For example, a portable indoor air purifier disclosed in Republic of Korea Patent No. 10-0308432 (July 06, 2002) and air purification disclosed in Republic of Korea Patent No. 10-0956850 (May 11, 2010) The device discloses a structure of an air purifier capable of purifying outside air. Conventional air cleaners as described above are provided with a single or plural air purification filters inside the case and a blower fan is mounted in the center portion of the case, so that the clean air is passed through the filter according to the operation of the blower fan to the user. Consists of supplied configuration.

However, according to the conventional air cleaner, when the purified air is discharged to the outside, it is inevitably supplied to the user by contacting the outside air again, and as a result, the user has a problem in that the air is not very clean. there was.

In particular, considering the recent air quality with a lot of fine dust, no matter how well the clean function of air is mixed with the outside air in the process of delivery to the user, such a clean function would have no use.

In other words, since the conventional air cleaner is not a method of directly purifying the air breathed by the user, such as a gas mask or an air mask, it cannot be said to completely purify the air breathed by the actual user.

In addition, in recent years, the need for a small air purifier that can be easily used in a narrow place such as a workplace or home where an individual is active, and more portable than a device for indoor air purification such as a building, has emerged.

In particular, there is a demand for a method of providing the user to directly breathe the purified air, rather than a method of indirectly purifying the surrounding air as in the conventional air cleaner.

Republic of Korea Patent No. 10-0308432. Republic of Korea Patent No. 10-0956850.

An object of the present invention, by supplying the purified air directly to the user's respirator, the clean function of the air supplied to the user can be exhibited to the maximum effect, forming a clean area using the air curtain greatly improved the user's portability It is to provide a portable fan of the method.

In particular, the present invention provides a clean area forming method using an air curtain that can prevent the contaminated air from being mixed with the purified air by forming an air curtain around the supplying purified air directly to the user. To provide a portable fan.

The present invention provides the following technical means as a means for solving the above problems.

The portable fan of the clean area forming method using the air curtain according to the present invention includes: a filter housing 70 in which air inlets 81 are formed and a plurality of filters 60 are accommodated therein; The inner passage part 19 is formed together with the filter housing 70 and is spatially connected to the filter 60, and the outer passage part 18 surrounding the inner passage part 19 is an independent space. A main body 10 formed; And an inlet fan 100 having a dual structure coupled to one side of the main body 10 to independently generate an air flow of the inner passage 19 and an air flow of the outer passage 18. The 2-way purifying air discharged to the inner passage 19 and the blower air discharged to the outer passage 18 form a clean region 36 and an outside air blocking region 37, respectively. It is characterized in that to form a) air discharge structure.

According to the present invention proposed, since the inlet fan composed of double blades is installed in the portable fan so as to divide the moving path of the air into two tracks, the air discharged from the portable fan is contacted with the outside air when supplied to the user. Can be blocked at source.

In other words, the present invention forms an air curtain in the form of enclosing the clean area while supplying the clean air purified by the filter to the clean area formed in the longitudinal direction, thereby forming an air blocking area on the outside of the clean area. It can be operated in a two-way (2-way) manner to supply air purification at the same time.

Accordingly, since the user can experience the air maximizing the efficiency of the clean function by the portable fan, there is an advantage that the use satisfaction can be greatly improved.

In addition, by installing a plurality of filters such as a pre-static filter, a medium filter, a hepa filter in the portable fan, there is an advantage that can accurately filter foreign matters from large particles to small particles.

In addition, since the inlet fan and the discharge fan are driven by separate motors, each blower fan can be operated smoothly without difficulty, and a separate handle is provided under the main body, thereby greatly improving the user's portability. There is an advantage.

In particular, the 2-way portable electric fan according to the present invention is not limited to a method used by a user, and can be used as an air cleaner in an office, a car interior, a living space, etc., and provides only a blowing function as necessary. It can be used as a fan.

The accompanying drawings are for explaining the contents of the present invention to those skilled in the art in more detail, and the technical spirit of the present invention is not limited thereto.
1 is a perspective view showing the overall appearance of a portable electric fan of a clean area forming method using an air curtain according to an embodiment of the present invention.
2 is an exploded view showing a detailed configuration of the portable fan.
3 is a cross-sectional view showing a coupling relationship between the components of the portable electric fan.
Figure 4 is a front view showing the inlet fan consisting of a double blade.
5 is a view illustrating a process in which air discharged from the portable fan is delivered to a user.
6 is a cross-sectional view of a portable fan according to another embodiment of the present invention.
7 is a view showing a portable fan according to the present invention used as a fan of the general blowing function, as well as the purification function.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, the terms or words used in this specification and claims should not be interpreted in a conventional or dictionary sense, and the inventors may appropriately define the concept of terms in order to best explain their invention in the best way possible. Based on the principle of the present invention, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention.

Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiment of the present invention and do not represent all of the technical idea of the present invention, at the time of the present application, various alternatives that can be substituted for them It should be understood that there may be equivalent water and variations.

1 to 3 are a perspective view, an exploded view and a cross-sectional view showing the structure of a portable electric fan of the clean area using the air curtain according to an embodiment of the present invention, respectively. And, Figure 4 is a front view showing an inlet fan consisting of a double blade of the configuration of the portable fan.

Referring to the drawings, the portable fan 1 according to the present invention is the outer body is made by the main body 10 and the filter housing 70. That is, the appearance of the fan 1 is formed by coupling the filter housing 70 to one side of the main body 10.

The filter housing 70 is formed with an inlet 81 for sucking outside air. In addition, a plurality of filters 60 may be installed in the filter housing 70 to filter foreign substances from the outside air sucked through the inlet 81. The plurality of filters 60 includes a pre-static filter 61, a medium filter 62, and a hepa filter 63. The pre-static filter 61 filters out foreign particles, hair, yellow dust, pollen, etc. having large particles, and the medium filter 62 filters various bacteria or dust, and the hepa filter 63. ) Plays a role of filtering small foreign particles such as indoor mold, fine dust, and E. coli. That is, the outside air sucked through the inlet 81 passes through the pre-electrostatic filter 61, the medium filter 62, and the HEPA filter 63 in sequence, and filters the foreign matter having large particles to the foreign matter having small particles. Can lose.

The filters 60 may be combined with each other and used as one product so that the filters 60 may be easily fixedly mounted in the filter housing 70. For example, the pre-electrostatic filter 61 and the hepa filter 63 may be attached to both surfaces of the medium filter 62 to be mounted in the filter housing 70 in a single filter set. As another example, protrusions protruding to both sides are formed in the medium filter 62, and grooves are inserted into the protrusions in the pre-electrostatic filter 61 and the HEPA filter 63, respectively. One set of filters may be constructed by insertion.

In order to maximize the foreign matter removal function of the filters 60, the user needs to replace the filters 60 periodically. Therefore, a filter replacement cover 80 for smooth replacement of the filters 60 is installed outside the filter housing 70. At this time, the filter replacement cover 80 is provided with an outside air inlet 81a communicating with the inlet 81 of the filter housing 70 so that outside air can be smoothly sucked into the filter housing 70. If the user wants to replace the filter 60, the filter replacement cover 80 is separated from the filter housing 70, and the user manually removes the filter 60 to the outside and easily replaces it with a new filter. can do.

In addition, an emergency light may be installed on the outer surface of the filter replacement cover 80 or the filter housing 70 to determine the state of the filters 60 and to inform the user whether the filter needs to be replaced. That is, a separate sensor is installed in the filter housing 70 to determine the state or replacement cycle of the filters 60. If the sensor detects that the filter 60 needs to be replaced, the sensor transmits this signal to the emergency light. Accordingly, an indication such as an illumination or an alarm is displayed in the emergency light, and the user can confirm the indication so as to replace the filter 60 at an appropriate time.

The outside air passing through the filters 60 is transmitted to the main body 10. The main body 10 is composed of a frame body 11 is formed so that the fan for inducing air blowing is seated and a handle 12 which is disposed below the body 11 and can be gripped by the user. . The main body 11 and the handle 12 are manufactured to be detachable or attached to each other. If the user wants to fix the position of the fan 1 in an indoor space such as a vehicle, the handle 12 is detached from the main body 11 to fix only the main body 11 at a specific position. Can be used as a state. As another example, when the user wants to use the fan 1 while walking, the handle 12 may be attached to the main body 11 to be used as a handy type.

One side of the main body 11 is coupled to the inlet fan 100 for blowing air passing through the filters 60, the other side of the main body 11 is a portion of the air passing through the inlet fan 100 The discharge fan 30 which blows to the discharge port 91 is combined.

The inflow fan 100 and the discharge fan 30 are each operated through a separate motor. Specifically, the inlet motor 40 is coupled to the center of the inlet fan 100, and the discharge motor 50 is coupled to the center of the discharge fan 30. The inflow fan 100 is rotationally driven according to the operation of the inflow motor 40, and the discharge fan 30 is rotationally driven in accordance with the operation of the discharge motor 50. As the fan 1 is configured as a double motor system, each blower fan can be operated smoothly.

The inflow fan 100 is provided with an inflow housing 105 in which the inflow motor 40 can be accommodated. The inflow housing 105 is manufactured in a cylindrical shape so that the inflow motor 40 can be inserted therein. A plurality of inner blades 110 extending radially are installed on an outer surface of the inflow housing 105. In addition, an outer blade 130 extending radially is formed on the outer side of the inner blade 110 similarly to the inner blade 110. That is, the inflow fan 100 is manufactured in a double blade structure in which the inner blade 110 and the outer blade 130 are separately installed.

The partition plate 120 is installed between the inner blade 110 and the outer blade 130. The partition plate 120 is configured to have a cylindrical shape similar to the inflow housing 105, and is configured to have a larger diameter than the inflow housing 105. The partition plate 120 is spaced apart from the inlet housing 105 at a predetermined interval, and the inner blade 110 is disposed in a space between the partition plate 120 and the inlet housing 105. Is installed. That is, the outer tip of the inner blade 110 is installed to be fixed to the inner surface of the partition plate 120, the inner tip of the inner blade 110 is installed to be fixed to the outer surface of the inflow housing 105.

The outer blade 130 is installed to be fixed to the outer surface of the partition plate 120. Specifically, the inner tip of the outer blade 130 is fixed to the outer surface of the partition plate 120. As such, the partition plate 120 serves as a boundary for distinguishing the positions of the inner blade 110 and the outer blade 130.

The main body 10 of the main body 10 has an outer passage portion 18 which is a movement path of air blown from the outer blade 130 and an inner passage portion which is a movement path of air blown from the inner blade 110. (19) is formed. The outer passage 18 is an area formed outside the inner passage 19 so as to surround the inner passage 19.

In addition, the outer blade 130 is configured to have a relatively large number compared to the inner blade (110). For example, as shown in Figure 4, the outer blade 130 is a total of 10 are installed on the outer surface of the partition plate 120 at a predetermined interval, the inner blade 110 of the partition plate 120 A total of five can be installed at regular intervals inside. Since the outer blade 130 is configured in a relatively large number compared to the inner blade 110 as described above, of the air delivered to the outside from the outer blade 130 of the air sucked through the inlet (81). The speed is relatively fast compared to the speed of the air delivered to the outside from the inner blade (110). Accordingly, the air passing through the outer blade 130 may form air in a boundary region (outer air blocking region) (see reference numeral 37 in FIG. 5) through which the outside air is blocked by the outside air. In addition, the air passing through the inner blade 110 may form clean air directly transmitted to the user through the inner passage 19. This will be described in detail with reference to FIG. 5 to be described later.

As a result, the outer blade 130 of the inlet fan 100 performs a function for blowing and forming an air curtain, and the inner blade 110 supplies clean air after filtering by introducing outside air and filtering the air. The shape and curvature structural features of each of the blades can be variously changed according to the functions of products (fans, air purifiers, etc.) to which the technical features of the present invention are applied, and the needs of those skilled in the art. Of course.

The discharge fan 30 installed on the other side of the main body 10 has a discharge housing 31 for providing a frame for accommodating the discharge motor 50 therein and a discharge coupled to an outer surface of the discharge housing 31. It consists of a blade (32). The discharge housing 31 has a configuration corresponding to the inflow housing 105, and the discharge blade 32 has a configuration corresponding to the inner blade 110. That is, the discharge fan 30 is manufactured to have a shape in which the partition plate 120 and the outer blade 130 are excluded from the configuration of the inlet fan 100.

The air passing through the inner blade 110 of the inflow fan 100 is intensively blown to the discharge port 91 by the discharge blade 32. In this way, the discharge blade 32 is configured to collect the air passing through the inner blade 110, the centralized blowing to the discharge port (91).

Air passing through the discharge fan 30 is blown out through the front cover 90 in which the discharge port 91 is formed. The front cover 90 is configured to surround the inner passing portion 19, and is configured to directly face the user's face when used in practice. Hereinafter, the delivery flow of clean air when a user uses the said fan 1 is demonstrated in detail.

5 is a view illustrating a process in which air discharged from the portable fan is delivered to a user. Referring to the drawings, when the user operates the fan 1 according to the present invention, outside air is introduced into the fan 1 through the inlet 81. The air introduced into the fan 1 is filtered through a plurality of foreign matters and small foreign matters sequentially while passing through the plurality of filters 60 to change to clean air. The clean air is blown to the two tracks through the inlet fan (100).

Specifically, the air passing through the outer blade 130 of the inlet fan 100 is discharged to the outside through the outer passage portion 18 of the main body 10, the inner blade 110 of the inlet fan 100. Air passing through) is discharged to the outside through the discharge port 91 of the front cover 90 through the inner passage 19 and the discharge blade 32 of the main body (10).

At this time, since the outer blade 130 is composed of a relatively large number compared to the inner blade 110, the air moved through the outer passage portion 18 to the air moved through the inner passage portion (19) In comparison, they move at a relatively high speed. That is, the air moved through the outer passage 18 forms an outside air blocking area 37 that can block the contact with the outside air. Then, the air discharged to the outside through the discharge port 91 through the inner passage 19 and the discharge blade 32 forms a clean region 36 in the central portion of the external air blocking region 37. That is, the clean area 36 is formed after the external air blocking area 37 is formed first, and the user can drink the air discharged through the clean area 36, thereby preventing contact with the outside air to clean the air. You can experience the air maximized functionality.

In addition, the main body 11 of the main body 10 is formed so as to gradually increase in diameter from the inlet 81 to the discharge port 91.

As a result, the air (air curtain) discharged from the outer passage portion 18 does not affect the purge air discharged from the inner passage portion 19, while externally contaminated air passes through the air curtain to the purified air side. Inflow can be prevented.

In addition, the outer passage portion 18 of the main body 11 is formed in a narrower shape toward the discharge port 91 from the inlet 81, so that the flow (flow rate) of air discharged from the outer passage portion 18 It can be induced to be faster.

In other words, the present invention increases the flow rate of the air discharged from the outer passage 18 to form an air curtain that maximizes the blocking effect, and at the same time to gradually expand the formed air curtain, contaminated outdoor air purifying air It can be prevented from mixing with.

6 and 7 illustrate an example in which the fan 1 described above is used in another manner. Specifically, FIG. 6 illustrates an embodiment in which the front filter 20 for additionally removing foreign matters of the air passing through the discharge fan 30 is installed at one side of the front cover 90.

Since the air passing through the plurality of filters 60 may be in contact with another foreign matter while moving through the inlet fan 100, the main body 11 of the main body, and the discharge fan 30, the fan according to the present embodiment. (1) is the front filter 20 is additionally installed just before the external discharge of air to completely remove such foreign matter. Accordingly, since the air that has passed through the front filter 20 and is in a completely clean state moves to the clean region 36, the user can drink air that has been completely clean. The front filter 20 may be formed of a pre-interruption filter, a medium filter, and a hepa filter, such as the filter 60 installed on the rear surface, or may be configured to include only some of the filters. In other words, the portable electric fan 1 of the present invention can be installed on both the intake side (rear) and the discharge side (front), or on one side thereof, and the filter 60 can be used for the type and configuration of the filter 60. It can also be configured in various ways.

In FIG. 7, an embodiment in which the above-described portable fan (1, hereinafter referred to as 'purification fan') is used as a general blower (3, hereinafter referred to as 'blower for fan') is shown. According to the present embodiment, the blower fan 3 has a fan cover 200, rather than the filter housing 70, in comparison with the purifying fan 1 described above, and a plurality of filters ( The only difference is that 60) is excluded, and other configurations are the same. According to such a structure, it is possible to change the said purification fan 1 to the blowing fan 3 as needed by a user. However, some or all of the filters 60 may also be installed in the cover 200 for the fan, and in this case, the quality of the air blown from the portable fan 3 may be improved.

In addition, the secondary battery is configured in the main body 11 or the handle 12 of the portable electric fan 1 of the present invention to supply power, and to be configured to be charged by the USB method, so that it can be easily charged anytime and anywhere. can do.

In addition, the portable electric fan 1 of the present invention is not limited to the shape of the drawings, and can be transformed into various character products, and at least a part can additionally configure components desired by the consumer, such as a mirror.

In addition, the discharge port 91 side of the front cover 90 outside or inside, by further configuring a guide blade for guiding the flow of air, it is possible to control the discharge direction of the air curtain and the purified air.

The above description of the present application is intended for illustration, and it will be understood by those skilled in the art that the present invention may be easily modified in other specific forms without changing the technical spirit or essential features of the present application. Therefore, it should be understood that the embodiments described above are exemplary in all respects and not restrictive. For example, each component described as a single piece may be implemented in a distributed manner, and similarly, components described as distributed may be implemented in a combined form.

The scope of the present application is indicated by the following claims rather than the above description, and it should be construed that all changes or modifications derived from the meaning and scope of the claims and their equivalents are included in the scope of the present application.

1: portable fan 10: main body
20: front filter 30: discharge fan
40: inflow motor 50: discharge motor
60: filter 70: filter housing
80: filter replacement cover 90: front cover
100: inflow fan 110: inner blade
120: partition plate 130: outer blade

Claims (10)

A filter housing 70 in which air inlets 81 are formed and in which a plurality of filters 60 are received;
The inner passage part 19 is formed together with the filter housing 70 and is spatially connected to the filter 60, and the outer passage part 18 surrounding the inner passage part 19 is an independent space. A main body 10 formed; And
An inlet fan 100 coupled to one side of the main body 10 to generate an air flow of the outer passage 18; And
And a discharge fan 30 coupled to the other side of the main body 10 and guiding air to be moved from the inner passage portion 19 to the discharge port 91.
The two-way method of forming the clean area 36 and the outside air blocking area 37, respectively, purged air discharged to the inner passage 19 and blower air discharged to the outer passage 18. A portable fan of a clean area forming method using an air curtain, characterized in that to form an air discharge structure.
A filter housing 70 in which air inlets 81 are formed and in which a plurality of filters 60 are received;
The inner passage part 19 is formed together with the filter housing 70 and is spatially connected to the filter 60, and the outer passage part 18 surrounding the inner passage part 19 is an independent space. A main body 10 formed; And
Is coupled to one side of the main body 10, the inlet fan 100 of the dual structure to generate the air flow of the inner passage 19 and the air flow of the outer passage 18 independently; ,
A two-way method in which the purge air discharged to the inner passage 19 and the blower air discharged to the outer passage 18 form a clean area 36 and an outside air blocking area 37, respectively. To form an air discharge structure,
It further comprises a discharge fan 30 coupled to the other side of the main body 10 and guides the air passing through the inlet fan 100 to be concentrated from the inner passage 19 to the discharge port 91. A portable fan of a clean area forming method using an air curtain.
The method according to claim 1 or 2,
The inner fan portion 19 of the portable fan of the clean area forming method using an air curtain, characterized in that the front cover 90 is attached to the discharge port 91 is formed.
The method of claim 3, wherein
The front cover 90 is a portable fan of the clean area forming method using an air curtain, characterized in that the front filter 20 for further removing the foreign matter of the air passing through the discharge fan 30 is installed.
The method according to claim 1 or 2,
The inflow fan 100 is driven by an inflow motor 40 installed on one side of the main body 10, and the discharge fan 30 is a discharge motor 50 installed on the other side of the main body 10. Portable fan of the clean area forming method using an air curtain, characterized in that driven by).
The method of claim 5,
The inflow fan 100,
An inlet housing 105 which provides a frame to seat the inlet motor 40 therein;
An inner blade 110 coupled to an outer surface of the inflow housing 105 and moving air to the clean region 36; And
The portable fan of the clean area forming method using an air curtain, characterized in that it comprises an outer blade (130) installed to surround the inner blade (110) to move the air to the outside air blocking area (37).
The method of claim 6,
The partition plate 120 is installed between the inner blade 110 and the outer blade 130.
Portable fan of the clean area forming method using an air curtain, characterized in that the inner blade and the outer surface of the partition plate 120 is coupled to the inner blade 110 and the outer blade 130 is fixed to each other.
The method of claim 6,
The discharge fan 30 is coupled to an outer surface of the discharge housing 31 and the discharge housing 31 that provides a frame for mounting the discharge motor 50 therein, and the inner blade 110 of the inlet fan 100. Portable fan of the clean area forming method using an air curtain, characterized in that consisting of a discharge blade 32 for guiding the air passing through the (3) to enter the clean area (36).
The method of claim 8,
The inlet housing 105, the discharge housing 31, the inner blade 110 and the discharge blade 32 is formed of a configuration corresponding to each other portable fan of the clean area forming method using an air curtain.
The method according to claim 1 or 2,
The main body 10 is composed of a main body 11 that provides a movement path of the air and a handle 12 installed in the lower portion of the main body 11 so that the user can grip,
The handle 12 is a portable fan of a clean area forming method using an air curtain, characterized in that the removable from the main body 11 is manufactured.

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