KR20210071217A - Air purifier using outside air - Google Patents

Abstract

According to the present invention, an air purifier using outdoor air comprises: a hexahedral lower chamber having at least one indoor air inlet and first purifying the indoor air introduced through the indoor air inlet; and a hexahedral-shaped upper chamber provided at the upper end of the lower chamber and having a lower surface communicating with an upper surface of the lower chamber, mixing the indoor air firstly purified in the lower chamber with outdoor air, purifying the secondary air, and then discharging it into the room through a purified air outlet formed on the upper surface.

Description

{Air purifier using outside air}

The present invention relates to an air purifier, and more particularly, performs primary purification of indoor air introduced through a lower chamber to filter out fine dust using a HEPA filter, and the primary purified air in the upper chamber It relates to an air purifier using outdoor air that is re-supplied to the room after performing secondary purification to reduce the concentration of air quality detrimental factors (carbon dioxide, VOCs, formaldehyde, radon) by mixing with outdoor air.

In general, an air purifier is a device that has a function of sucking in contaminated air in a room through an inlet and then discharging the purified air through an internal filter or the like back into the room through an outlet.

Usually, these air purifiers are classified according to the performance of the filter. A pre-filter for filtering large airborne dust, a functional filter for improving antibacterial and deodorizing performance, a deodorizing filter containing activated carbon to remove odor, fine dust and HEPA filters for ultra-fine dust filtration and, recently, products with a Wolfa filter, which has a better removal rate of fine dust than HEPA filters, have been released, and the importance is increasing day by day along with air pollution.

However, this conventional filter-type air purifier primarily filters and purifies the ultrafine dust contained in the indoor air using a HEPA filter, etc., but it is effective against carbon dioxide, VOCs, formaldehyde and radon generated indoors. There was a limit in that it could not remove various types of air quality impairing factors.

In order to reduce these air quality impairing factors, it is necessary to periodically introduce fresh air from the outside to the inside to ventilate. However, when ventilation and air cleaning by a filter are performed at the same time, indoor fine dust is dispersed by the outside air, so the fine dust caused by the filter There was a secondary problem that the removal rate was lowered.

To this end, patent applications for a ventilation and air cleaning device having both ventilation and air cleaning functions have been filed in the prior art. One example of such a combined ventilation air cleaning device is described in detail in Korean Patent Registration No. 1921206 (hereinafter referred to as 'prior literature'). has been disclosed.

Referring to FIG. 1 attached below, the conventional combined ventilation air purifier disclosed in the prior literature includes a main body casing 101, an exhaust port 102 for exhausting the bet to the outside, an intake port 103 for introducing outside air into the room, and purification. Intake port 105 for supplying the outside air or bet into the room, ventilation port 104 for sucking in to ventilate the bet, filter 180, intake damper 107, ventilation damper 114, supply air damper 134, It is configured to include an exhaust damper 136 , an emergency exhaust damper 174 , a blowing fan 150 , and the like.

The conventional air purifier 100 is operated to perform individual functions by selecting one mode from among a ventilation mode, an air cleaning mode, and an emergency exhaust mode by a single blower fan 150 and a controller 190 .

More specifically, in the ventilation mode, when outside air is introduced through the intake port 103 , some air is discharged to the outside through the exhaust port 102 , and the exhaust hole 135 is sealed by the exhaust damper 136 . In the case of closing the intake port 103 by the intake damper 107 and the intake port 103 by the intake damper 107 and closing the supply port 105 by the supply air damper 134, outside air can be introduced together without discharging the bet. All are operated to discharge to the outside through the exhaust port (102).

Also, in the air cleaning mode, the intake damper 107 closes the intake port 143 by the controller 190, the exhaust damper 136 also closes the exhaust hole 135, and the ventilation damper 114 closes the ventilation hole 113 ), and the air supply damper 134 opens the air supply hole 133, and the bet air introduced through the ventilation port 104 moves to the ventilation space 131 through the filter 180, and the air supply port 105 is closed. It is introduced into the room through an operation to remove foreign substances contained in the bet without introducing outside air and discharging the bet and supplying it to the room.

On the other hand, in the emergency exhaust mode, the air supply damper 134 closes the supply port 105 by the controller 190, the intake damper 107 closes the intake port 103, and the emergency exhaust damper 174 closes the emergency exhaust hole. (173) is opened, and the bet moved to the intake space moves to the ventilation space 131 by the blowing fan 150 through the floor space 120 and the suction space 141 through the emergency discharge hole 173, Since the air in the ventilation space 131 moves to the exhaust space through the exhaust hole 135 and is discharged to the outside through the exhaust port 102, it does not go through the filter 180, so it has a function of reducing the load by the filter 180. carry out

However, the conventional ventilation combined air purifier disclosed in the prior literature has to install all four air inlets and flow paths for each mode in order to selectively individually operate each mode, such as a ventilation mode, an air cleaning mode, and an emergency exhaust mode. Therefore, not only does the configuration of the device become large and complicated, but it is also cumbersome to operate as the filtering and ventilation of fine dust are performed individually, and in particular, the air purification performance deteriorates as the filtering and ventilation of fine dust are performed individually. this remained

Korean Patent Registration No. 10-1921206 (Registered on November 16, 2018)

Accordingly, the present invention has been devised to solve the above problems, and while the configuration of the device is compact enough to be installed directly on a window, it filters fine dust from indoor air introduced through the lower chamber using a HEPA filter. After performing the primary purification, the secondary purification of reducing the concentration of air quality inhibitors (carbon dioxide, VOCs, formaldehyde, radon) by mixing the primary purified air and outside air in the upper chamber is continuously performed on one air flow path. An object of the present invention is to provide an air purifier with significantly improved air purifying performance.

According to an embodiment of the present invention for achieving the above object, there is provided a hexahedral-shaped lower chamber having at least one indoor air inlet and primarily purifying indoor air introduced through the indoor air inlet; and the lower surface communicates with the upper surface of the lower chamber in a state provided at the upper end of the lower chamber, the indoor air first purified in the lower chamber is mixed with outdoor air to be secondarily purified, and then the indoor air is purged through the purified air outlet formed on the upper surface. It is configured to include; an upper chamber of a hexahedral shape that is discharged to the

Also, according to an embodiment, the indoor air inlet is formed on both sides of the side surface of the lower chamber, and a mesh-type pre-filter is further provided in the indoor air inlet, respectively.

In addition, according to an embodiment, the lower chamber may include: an impeller for sucking indoor air into the lower chamber and then discharging it to the upper chamber; and a HEPA filter installed in close contact with the front air inlet of the impeller.

In addition, according to an embodiment, the impeller is provided with a blowing fan inside the spiral casing in which the discharge port is formed upward.

In addition, according to an embodiment, a pressure sensor for detecting the degree of attachment of fine dust is further provided on one side of the HEPA filter.

In addition, according to an embodiment, a discharge control means for controlling the opening and closing of the discharge port is further provided at the purification air discharge port of the upper chamber.

In addition, according to an embodiment, the discharge control means may include: a cover plate coupled to the four corners of the purified air discharge port to be elevated; and a motor for adjusting the degree of opening of the purified air outlet by tilting or elevating the cover plate.

In addition, according to an embodiment, an outside air inlet pipe and a valve are further provided on the rear surface of the upper chamber, and the outside air introduced through the outside air inlet pipe is mixed with the air firstly purified in the lower chamber and is secondarily purified, and then the upper side of the purified air is discharged through the outlet.

In addition, according to an embodiment, an inner chamber is further provided inside the upper chamber, and the outdoor air introduced through the outdoor air inlet pipe flows along the surface of the inner chamber and is mixed with the firstly purified air, and then It is discharged to the purified air outlet.

In addition, according to an embodiment, a control panel for controlling the device is further provided on the front surface of the upper chamber.

According to the present invention as described above, the device is compact enough to be installed directly on a window, and after performing primary purification by filtering fine dust using a HEPA filter on indoor air introduced through the lower chamber, the upper Air purification performance is improved by continuously performing secondary purification, which reduces the concentration of air quality inhibitors (carbon dioxide, VOCs, formaldehyde, radon) by mixing the primary purified air with fresh outside air in the chamber on one air passage An object of the present invention is to provide an improved air purifier.

1 is a perspective view showing a state in which the front cover is removed from a conventional air purifier combined with ventilation;
2 is a front perspective view showing an air purifier using outside air of the present invention according to an embodiment;
3 is a rear perspective view of FIG.
Figure 4 is a front view schematically showing the main configuration of Figure 2;
Figure 5 is a side cross-sectional view schematically showing the main configuration of Figure 2;
6 is a rear view schematically showing the main configuration of FIG.

The terms used herein are used only to describe specific embodiments, and are not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. In the present specification, terms such as "comprise" or "have" to "include" are intended to designate that the features, numbers, steps, operations, components, parts, or combinations thereof described in the present specification exist, but one It should be understood that it does not preclude the existence or addition of other features or numbers, steps, operations, components, parts, or combinations thereof, or other features or more.

Unless defined otherwise herein, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

Terms such as those defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related art, and should not be interpreted in an ideal or excessively formal meaning unless explicitly defined in the present specification. shouldn't

Hereinafter, with reference to the accompanying drawings, the configuration and operation relationship of the air purifier utilizing outdoor air of the present invention will be described in detail as follows.

2 is a front perspective view showing an air purifier using outside air of the present invention according to an embodiment, FIG. 3 is a rear perspective view of FIG. 2 , and FIG. 4 is a front view schematically showing the main configuration of FIG. 5 is a side cross-sectional view schematically showing the main configuration of FIG. 2 , and FIG. 6 is a rear view schematically showing the main configuration of FIG. 2 .

As shown in FIGS. 2 to 6, the air purifier according to an embodiment of the present invention is provided with a lower chamber 10 having a rectangular parallelepiped shape, and indoor air intakes 10a are provided on both sides of the lower chamber, respectively. is formed, and a pre-filter 110 is mounted at each of the indoor air intake ports 10a.

The pre-filter 110 is a mesh-type mesh installed at the indoor air inlet 10a to pre-filter large foreign substances contained in the indoor air, and may be generally made of a plastic mesh mesh.

In addition, an impeller for sucking indoor air into the lower chamber 10 and discharging it to the upper chamber 20 provided at the upper end is installed in the lower chamber 10 .

The impeller may be configured in a form in which the blowing fan 120 is installed inside the spiral casing 140 in which the discharge port is formed upward, according to an embodiment. A HEPA filter 130 for primary purification of indoor air is installed in close contact.

Here, since the HEPA filter is specified as an example of a filtering means for primary purification by filtering out even ultra-fine dust of 2.5 μm or less contained in indoor air, it is not necessarily limited thereto, and air purification of the required device It is specified that the device can be implemented as much as possible even by replacing it with a ULPA filter that has better ultra-fine dust removal performance depending on the performance.

In addition, as a pressure sensor (not shown) for detecting the degree of attachment of fine dust is further provided on one side of the HEPA filter 130, a control panel (not shown) provided on the front of the device by converting the concentration of fine dust into a numerical value time), and may also display an alarm for replacement of the HEPA filter 130 due to excessive adhesion of fine dust.

On the other hand, an upper chamber 20 having a size substantially equal to the shape of the lower chamber is provided at the upper end of the lower chamber 10 , and the upper surface of the lower chamber 10 and the lower surface of the upper chamber 20 are provided with air A communication hole 10b of a certain size is formed so as to pass therethrough.

Therefore, the indoor air that has passed through the pre-filter 110 in the lower chamber 10 filters out large foreign substances, and then passes through the HEPA filter to filter out fine dust and ultra-fine dust included in the indoor air, and is first purified. Then, the indoor air that has been first purified as described above is moved to the upper chamber 20 through the communication hole 10b by the rotational force of the blower fan 120 provided in the spiral casing 140 .

At this time, as an inner chamber 210 in the form of a diffuser whose cross section is gradually wider toward the upper chamber 20 is further provided inside the upper chamber 20, the indoor air primarily purified in the lower chamber 10 is supplied by a blower fan 120. ), it is understandable that it is pushed up through the communication hole 10b and transferred into the inner chamber 210 of the upper chamber 20 .

Also, referring to FIGS. 3 and 5 , an outside air inlet pipe 300 and a valve 310 are further provided on the rear surface of the upper chamber 20 .

Accordingly, the outdoor air introduced through the outdoor air inlet pipe 300 flows along the surface of the inner chamber 211 and flows into the inner chamber 211 or meets and mixes with the primary purified air at the purified air outlet 20a. The tea goes through a purification process.

Here, the secondary purification process is a physical purification process in which the aforementioned primary purification process filters out fine dust or ultrafine dust, whereas the secondary purification process is an air quality inhibitory element still remaining in the primary purified air ( Carbon dioxide, VOCs, formaldehyde, radon) can be understood as a purification process for reducing the concentration of the air quality inhibitory element by mixing fresh outdoor air.

Therefore, the outside air introduced through the outside air inlet pipe 300 flows along the surface of the inner chamber 210 , and some of the outside air flows into the inner chamber 210 through the open lower end of the inner chamber 210 , and Some of them are moved upward on the surface of the inner chamber 210 , and are mixed with the first purified air at the purified air outlet 20a , and then are secondarily purified and discharged into the room.

In addition, in FIGS. 2 to 5 , the inner chamber 210 and the top cover plate 220 are shown as being fixedly installed on the stand member 211 of a certain height, but the present invention is not limited to the fixed configuration. By further adding a specific type of discharge control means (not shown) to the purified air outlet 20a formed in the form of a slit between the inner chamber 210 and the cover plate 220, the purified air outlet 20a is opened and closed. You can also selectively adjust the degree.

More specifically, the discharge control means (not shown) couples the cover plate 220 to the four corners of the purified air discharge port 20a of the inner chamber 210 so as to be able to move up and down, and the cover plate is connected to the motor ( It is understandable that the degree of opening/closing of the purified air outlet 20a is adjusted by tilting or elevating or lowering by using (not shown in the drawing), thereby selectively controlling the indoor discharge direction and angle of the purified air.

On the other hand, referring to FIGS. 5 and 6 , an outdoor air inlet 20b is formed on the rear surface of the upper chamber 20, and a flexible tube-shaped outdoor air inlet pipe 300 is provided around the periphery of the outdoor air inlet 20b A valve 310 is provided on the inside of the outdoor air inlet pipe 300 while being coupled to surround the outdoor air inlet 20b.

Therefore, it is possible to selectively open and close the outdoor air inlet 20b by operating the valve 310, that is, the valve driving unit 320 provided on one side of the valve 310 closes the valve 310 and the outdoor air inlet 20b. By opening, the outside air can be supplied into the upper chamber 20 through the outside air inlet pipe 300 and the outside air inlet 20b.

At this time, more preferably, a blowing fan (not shown) may be further provided inside the outside air inlet pipe 300, for example, the outside air inlet 20b according to the one-way rotation of the blowing fan (not shown). External air may be introduced into the upper chamber 20 through the ventilator (ventilation mode), or the primary purified indoor air may be exhausted to the outdoors by rotating the blowing fan (not shown) in the reverse direction (for example, , exhaust mode).

Also, if necessary, by closing both the valve 310 and the outside air inlet 20b, outside air may be blocked from flowing into the upper chamber 20 or exhausted to the outside (indoor air circulation mode).

Meanwhile, a control panel (not shown) may be further provided on the front surface of the upper chamber 20 for controlling the air purifier of the present invention.

A user can select various modes (ventilation mode, exhaust mode, indoor air circulation mode) according to the opening and closing of the valve 310 through the control panel (not shown), or the number of rotations of the blower fan 120 of the impeller may be selectively controlled to control the air discharge amount and the like.

In addition, as described above through the control panel (not shown), the pressure sensor (not shown) detects the amount of fine dust attached to the HEPA filter 130 and displays the replacement alarm of the HEPA filter 130 . function can also be performed.

On the other hand, the present invention has several advantages in terms of scalability, such as being able to be installed directly on a window as it has a small size and a compact configuration of only the lower chamber and the upper chamber, unlike the conventional air purifier installed only on the floor surface of the room. have

In addition, the present invention is not limited only by the above-described embodiment, and since it is possible to create the same effect even when changing the detailed configuration or number and arrangement of the device, those of ordinary skill in the art will present the present invention It is specified that various additions, deletions, and modifications are possible within the scope of the technical idea of

10: lower chamber 10a: indoor air intake
10b: through hole 20: upper chamber
20a: purified air outlet 110: pre-filter
120: blow fan 130: HEPA filter
140: spiral casing 210: inner chamber
220: cover plate 300: outside air inlet pipe
310: valve 320: valve driving unit

Claims (10)

a hexahedral lower chamber having at least one indoor air inlet and primarily purifying indoor air introduced through the indoor air inlet; and
It is provided at the top of the lower chamber, and the bottom surface communicates with the upper surface of the lower chamber, and after secondary purification by mixing indoor air firstly purified in the lower chamber with outdoor air, it enters the room through the purified air outlet formed on the upper surface. A hexahedral upper chamber for discharging; including,
An air purifier using outside air. The method of claim 1,
The indoor air intake is formed on both sides of the side surface of the lower chamber, and the indoor air intake is further provided with a mesh-type pre-filter, respectively.
An air purifier that utilizes outside air. The method of claim 1,
The lower chamber,
an impeller for sucking indoor air into the lower chamber and then discharging it to the upper chamber; and
Containing, a HEPA filter that is installed in close contact with the front air inlet of the impeller
An air purifier using outside air. The method of claim 1,
The impeller is provided with a blowing fan inside the spiral casing in which the discharge port is formed upward,
An air purifier that utilizes outside air. 4. The method of claim 3,
A pressure sensor for detecting the degree of adhesion of fine dust is further provided on one side of the HEPA filter,
An air purifier that utilizes outside air. The method of claim 1,
A discharge control means for controlling the opening and closing of the discharge port is further provided at the purification air discharge port of the upper chamber,
An air purifier using outside air. 7. The method of claim 6,
The discharge control means,
a cover plate coupled to the four corners of the purified air outlet so as to move up and down; and
A motor that adjusts the degree of opening of the purified air outlet by tilting or elevating the cover plate; including,
An air purifier that utilizes outside air. The method of claim 1,
An outside air inlet pipe and a valve are further provided on the rear surface of the upper chamber, and the outside air introduced through the outside air inlet pipe is mixed with the primary purified air in the lower chamber, is secondarily purified, and then discharged to an upper purified air outlet ,
An air purifier using outside air. 9. The method of claim 8,
An inner chamber is further provided inside the upper chamber, and the outdoor air introduced through the outdoor air inlet pipe flows along the surface of the inner chamber, mixes with the primary purified air, and is discharged through an upper purified air outlet,
An air purifier using outside air. The method of claim 1,
A control panel for controlling the device is further provided on the front surface of the upper chamber,
An air purifier that utilizes outside air.

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