KR20240093246A - Air curtain system - Google Patents

Abstract

The present invention relates to an air curtain system installed at the entrance of a building to block external air and internal air when entering and exiting, comprising: a casing formed with a supply opening and an exhaust opening; A blowing fan installed within the casing to cause air flow; and an exhaust direction control means connected to the casing to control the discharge direction of air.

Description

Air curtain system {Air curtain system}

The present invention relates to an air curtain system, and more specifically, to an air curtain system installed at the entrance of a building to block external air and internal air when entering or exiting.

The air curtain system is installed at building entrances, openings of other structures, and showcases, and creates a thick airflow (air curtain) in the openings, blocking external air and internal air, resulting in heat loss, dust, gas, insects, etc. It is a facility that prevents intrusion.

In the case of building entrances, it is common to install an air curtain system on the external or internal ceiling of the entrance where automatic doors are installed and blow high-pressure air from the ceiling to the floor to form an air curtain. A method of forming an air curtain by installing an air curtain system vertically on one side of the entrance and blowing air from one side to the other is also used.

The air flow by the air curtain system consists of air flowing into the casing through the supply port, and then high-pressure air being discharged to the outside through the exhaust port. Air flow and high-pressure air are generated by a blowing fan installed within the casing.

A conventional air curtain system has a fixed air discharge direction. In other words, its use is limited because it only performs the function of blocking external and internal air when entering and exiting by forming an air curtain at the entrance.

Republic of Korea Patent Publication No. 10-2011-0132176 (published on December 7, 2011)

The present invention was developed to solve the problems of the prior art as described above. By making it possible to switch the direction of air discharge between the entrance and the interior, it not only functions to block external air and internal air, but also purifies the internal air by circulating it. The purpose is to provide an air curtain system that can

An air curtain system according to a preferred embodiment of the present invention for achieving the above object includes a casing formed with a supply port and an exhaust port; A blowing fan installed within the casing to cause air flow; and an exhaust direction control means connected to the casing to control the discharge direction of air.

The exhaust port includes a first exhaust port formed toward the entrance and a second exhaust port formed toward the interior, and within the casing, first and second exhaust ports guide the air discharged from the blowing fan to the first and second exhaust ports, respectively. is formed.

The exhaust direction control means includes a first exhaust direction control means provided in the casing and controlling the discharge direction of air by selectively opening and closing the first and second exhaust passages.

The exhaust direction control means includes a second exhaust direction control means that controls the discharge direction of air through angle control of the casing.

The first exhaust direction control means includes an opening and closing member rotatably installed in the casing to selectively open and close the first and second exhaust passages; and a motor installed in the casing to rotate the opening and closing member.

The first exhaust direction control means further includes a blowing guide installed in the casing to guide air discharged from the blowing fan toward the exhaust port, and the blowing guide includes a pair of guide plates.

One end of the opening and closing member is rotatably coupled within the casing, and the other end of the opening and closing member is detachably fixed to the guide plate between the guide plates.

The other end of the opening and closing member and the guide plate are fixed by magnetic force.

The first exhaust direction control means further includes a magnet provided at the other end of the opening and closing member and magnetically fixed to the guide plate.

A magnet insertion groove is formed in the guide plate into which a magnet can be removably inserted.

The first exhaust direction control means further includes an airtight member surrounding one end of the rotating portion of the opening and closing member and the motor within the casing.

The first exhaust direction control means further includes exhaust blades provided at the first and second exhaust ports to be capable of adjusting the vertical angle.

The second exhaust direction control means includes: an installation stand installed above the casing and hinged to the lower part so that the casing can rotate; and angle control means for controlling the rotation angle of the casing with respect to the installation stand.

The angle control means includes a hinge protrusion provided at the lower part of the installation stand; A guide projection provided at the lower part of the installation stand to guide the rotation of the casing; A guide groove formed on the upper part of the casing into which the guide protrusion is inserted; and a plurality of fixing grooves connected to the guide groove and into which the guide protrusion is inserted and fixed when fixing the position of the casing.

The air curtain system according to the present invention further includes a first intake purifying means provided at the air supply opening.

The air curtain system according to the present invention further includes an airflow guide passage formed in the ceiling portion where the casing is embedded and guiding the flow of indoor air to the supply opening of the casing.

The air curtain system according to the present invention further includes a second intake purifying means provided at the entrance of the air flow guide passage.

According to the air curtain system of the present invention, the discharge direction of air can be switched between the entrance and the interior, so that in addition to simply blocking the outside air and inside air, the inside air can be circulated and purified.

Additionally, by providing various means for controlling the discharge direction of compressed air, the exhaust direction can be finely controlled. That is, the exhaust direction can be switched between the entrance and the interior by rotating the opening and closing member constituting the first exhaust direction control means, and the exhaust can be adjusted up and down through the exhaust blade. The exhaust direction can also be controlled by rotating the casing itself through the second exhaust direction control means.

1 and 2 are diagrams showing the installation state of the air curtain system according to the first embodiment of the present invention.
Figure 3 is a perspective view of an air curtain system according to the first embodiment of the present invention.
Figure 4 is a cross-sectional view of an air curtain system according to a first embodiment of the present invention.
Figure 5 is a cross-sectional view showing another installation form of the first intake purification means shown in Figure 4.
Figure 6 is a cross-sectional view showing the first exhaust direction control means when air is discharged through the first exhaust port.
Figure 7 is a cross-sectional view showing the first exhaust direction control means when air is discharged through the second exhaust port.
Figure 8 is a diagram showing the installation state of the air curtain system according to the second embodiment of the present invention.
Figure 9 is an enlarged view of part A of Figure 8.
10 and 11 are diagrams showing an air curtain system according to a third embodiment of the present invention.

Hereinafter, an air curtain system according to preferred embodiments of the present invention will be described in detail with reference to the attached drawings.

1 and 2 of the attached drawings show the installation state of the air curtain system according to the first embodiment of the present invention.

The air curtain system (1) according to the present invention is installed embedded in the indoor ceiling. When the door is opened and a person enters through the doorway, air is sprayed toward the doorway as shown in Figure 1 to form an air curtain, preventing people from entering and exiting. When there is none, spray air toward the room as shown in Figure 2.

When an air curtain is formed at the entrance as shown in FIG. 1, the inflow of outdoor bugs, fine dust, and gases into the room is blocked, and the external discharge of cold or hot indoor air is blocked.

As shown in Figure 2, when the door is closed, indoor air is introduced into the air curtain system (1) according to the present invention and then discharged back into the room. In this process, contaminants contained in the indoor air are filtered out, making the indoor air It can be purified cleanly.

The air curtain system 1 according to the present invention may be integrated into the automatic door opening and closing system when an automatic door is installed at the entrance, or may be installed separately from the automatic door. In addition, the air curtain system (1) according to the present invention can be installed regardless of the type of door installed at the entrance, and its installation location can also be installed not only on the ceiling (ceiling type) but also on the side (vertical type) of the entrance. . In this embodiment, the air curtain system 1 is embedded in the ceiling, but is not limited to this and can also be in an exposed form (for example, an installation type or a hanger type). When the air curtain system (1) is integrated with the automatic door opening and closing system, an inspection port for inspecting the air curtain system (1) may be provided in the automatic door opening and closing system.

Although not shown in the drawing, the air curtain system 1 according to the present invention may be equipped with a detection sensor that detects people entering and leaving through the entrance. When a person is detected, air can be configured to spray toward the entrance as shown in FIG. 1, and when a person is not detected, air can be configured to spray toward the room as shown in FIG. 2.

The air curtain system 1 according to the present invention may be configured to operate in conjunction with the operation of the door installed at the entrance, or may be configured to operate separately.

For example, when a system for detecting people, such as an automatic door, is provided, the operation of the automatic door and the operation of the air curtain system 1 can be linked. That is, when the automatic door is opened, the air curtain system 1 can be configured to spray air toward the entrance, and when the automatic door is closed, the air curtain system 1 can be configured to spray air toward the room. At this time, the sensor that detects people can be configured only on the automatic door side.

When the door is opened and closed manually, the operation of the door and the operation of the air curtain system 1 can be configured to be performed separately. At this time, a detection sensor that detects a person may be configured on the air curtain system (1).

Whether the operation of the air curtain system 1 according to the present invention is performed in conjunction with the door or individually, all operations are automatically controlled by a control unit (not shown).

FIG. 3 of the attached drawings is a perspective view of an air curtain system according to a first embodiment of the present invention, FIG. 4 is a cross-sectional view of an air curtain system according to a first embodiment of the present invention, and FIG. 5 is a cross-sectional view of the air curtain system according to the first embodiment of the present invention. This is a cross-sectional view showing another installation form of the first intake purification means.

The air curtain system 1 according to the present invention includes a casing 10, a blowing fan 20, a first exhaust direction control means 30, and a first intake purification means 40.

The casing 10 is formed with an upper space 11 and a lower space 12 separated in the upper and lower sides. A blowing fan 20 is installed in the upper space 11, and a first exhaust direction control means 30 is installed in the lower space 12. A supply opening 13 is formed on one side of the upper space 11, and first and second exhaust openings 14 and 15 are formed on both sides of the lower space 12, respectively.

The upper space 11 and the lower space 12 of the casing 10 are separated by a partition 16, and the partition 16 transports the air discharged from the blowing fan 20 to the lower space 12. A transfer hole 17 is formed for.

The lower space 12 of the casing 10 is formed in a shape where the left and right widths narrow from the top to the bottom, and both sides are formed to slope downward. A first exhaust port 14 facing toward the entrance is formed on one side of the lower space 12, and a second exhaust port 15 facing toward the interior is formed on the other side of the lower space 12. Since both the first and second exhaust ports 14 and 15 are inclined to face the floor, the air discharged through the first and second exhaust ports 14 and 15 is directed toward the floor.

The blowing fan 20 is installed in the upper space 11 of the casing 10 and compresses low-pressure indoor air to high pressure and discharges it. The inflow and discharge flow of indoor air is automatically achieved by the operation of the blowing fan 20.

The first exhaust direction control means 30 controls the discharge direction of the high-pressure air discharged from the blower fan 20 so that it is discharged toward the first exhaust port 14 or toward the second exhaust port.

The first intake purification means 40 is provided at the air supply opening 13 of the upper space 11 to filter out contaminants contained in the incoming indoor air. The first intake purification means 40 may be composed of an intake grill, a dust collection net, or a dust collection filter. In terms of air purification effect, the order is intake grill 〈 dust collection net 〈 dust collection filter, and in terms of air permeability, the order is intake grill 〉 dust collection net 〉 dust collection filter. In this way, since the first intake purification means 40 has different usage characteristics depending on its type, it can be selectively used depending on the usage environment.

3 to 5 show an example in which a dust collection filter is used as the first intake purifying means 40. Dust collection filters can be installed in two forms. As shown in FIG. 4, it may be installed vertically within the air supply opening 13 so that outside air can be purified while moving horizontally, or as shown in FIG. 5, it may be installed horizontally within the air supply opening 13 to allow outside air to flow vertically. It can also be purified while moving.

Meanwhile, the first intake purification means 40 may be of different types or may be applied in combination with a plurality of the same type. For example, an intake grill and a dust collection net, an intake grill and a dust collection filter, or a dust collection net and a dust collection filter may be combined.

FIG. 6 of the attached drawings is a cross-sectional view showing the first exhaust direction control means when air is discharged through the first exhaust port, and FIG. 7 is a first exhaust direction control device when air is discharged through the second exhaust port. This is a cross-sectional view showing the Sudan.

The first exhaust direction control means 30 controls the discharge direction of purified air discharged toward the entrance or the interior, and includes a blowing guide 31, an opening and closing member 32, a motor 33, a magnet 34, and an airtight device. It includes a member 35 and an exhaust blade 36.

The blowing guide 31 is installed at the lower part of the partition 16 to guide the lower transport of air discharged from the blowing fan 20 through the transport hole 17. A pair of guide plates installed facing each other ( It consists of 31a)(31b). The guide plates (31a) (31b) are installed on both sides of the transfer hole (17) and are installed at an angle with the gap narrowing from the top to the bottom.

In the lower space 12 of the casing 10, first and second exhaust passages L1 and L2 are formed to connect the lower end of the blowing guide 31 and the first and second exhaust ports 14 and 15, respectively. do.

The opening and closing member 32 controls the discharge direction of compressed air passing through the blowing fan 20 by selectively opening and closing the first and second exhaust passages L1 and L2. That is, as shown in FIG. 6, when the first exhaust passage (L1) is opened, compressed air is discharged toward the entrance to form an air curtain, and as shown in FIG. 7, when the second exhaust passage (L2) is opened, compressed air is discharged into the room. is discharged towards

The opening and closing member 32 is formed in a plate shape, and its lower end is rotatably hinged to the inner floor of the lower space 12, and its upper end moves between a pair of guide plates 31a and 31b and moves between the first and second guide plates 31a and 31b. ,2 When the exhaust passages (L1) (L2) are closed, they are selectively and detachably fixed to one side of the guide plates (31a) (31b). When the opening and closing member 32 is fixed to the guide plate 31a located on the side of the first exhaust port 14 among the pair of guide plates 31a and 31b, the first exhaust passage L1 is blocked and the second exhaust passage ( L2) is opened. Conversely, when the opening and closing member 32 is fixed to the guide plate 31b located on the side of the second exhaust port 15, the second exhaust passage L2 is blocked and the first exhaust passage L1 is opened.

The motor 33 is installed on the inner floor of the lower space 12 and controls the forward and reverse rotation of the opening and closing member 32. The operation of the motor 33 is automatically controlled by the control unit.

The magnet 34 is mounted on the top of the opening and closing member 32, and secures the upper end of the opening and closing member 32 to the guide plates 31a and 31b in a magnetically attachable and detachable manner. Magnet insertion grooves 31c and 31d into which the magnet 34 is removably inserted are formed at the lower ends of the opposing surfaces of the guide plates 31a and 31b, respectively. The fixation between the opening and closing member 32 and the guide plates 31a and 31b is maintained stably through the magnet 34, thereby preventing air leakage between the opening and closing member 32 and the guide plates 31a and 31b. It can be prevented effectively.

The airtight member 35 covers the hinge joint portion of the motor 33 and the opening and closing member 32 at the bottom of the lower space 12, thereby maintaining airtightness between the airtight member 35 and the bottom surface of the lower space 12. .

The exhaust blade 36 is rotatably installed in the first and second exhaust ports 14 and 15 in the vertical direction, thereby controlling the upward and downward discharge direction of the air discharged through the first and second exhaust ports 14 and 15. You can. The operation of the exhaust blade 36 is performed by a motor (not shown) and may be automatically controlled by a control unit. The position of the air curtain formed at the entrance can be finely controlled through the exhaust blade 36 installed in the first exhaust port 14. The exhaust angle of the air discharged toward the room can be finely controlled through the exhaust blade 36 installed in the second exhaust port 15.

According to the first exhaust direction control means 30 configured as above, the discharge direction of high-pressure air is controlled by the opening and closing member 32 to be toward the entrance or the interior, and the exhaust air is discharged through the exhaust blade 36. Up and down direction control is achieved.

FIG. 8 of the attached drawings shows the installation state of the air curtain system according to the second embodiment of the present invention, and FIG. 9 is an enlarged view of portion A of FIG. 8.

In the ceiling where the air curtain system (1) is installed, a built-in groove (50) for embedding the air curtain system (1) and an air flow guide passage (60) that guides the flow of indoor air through the embedded groove (50) are connected to each other. is formed A second intake purification means 70 is provided on the inlet side of the airflow induction passage 60 to primarily purify the indoor air introduced into the embedded groove 50.

The air curtain system according to this embodiment is configured to further include an air flow guide passage 60 and a second intake purifying means 70 in addition to the air curtain system 1 according to the first embodiment.

Like the first intake purification means 40, the second intake purification means 70 may be composed of an intake grill, a dust collection net, or a dust collection filter. The configuration embodiment can also be implemented in various ways, similar to the first intake purification means 40. According to this embodiment, both the first and second intake purification means 40 and 70 may be provided, or only the second intake purification means 70 may be provided.

By providing a separate inflow passage for indoor air flowing into the casing 10 as described above, indoor air can be smoothly introduced into the casing 10. That is, when the casing 10 is installed embedded in the ceiling, if the embedded space is narrow, the inflow of indoor air into the casing 10 may not be smooth, but as shown in FIGS. 8 and 9, a separate airflow induction passage 60 ), so that indoor air can be smoothly introduced even if the installation space of the casing 10 is narrow.

10 and 11 of the attached drawings show an air curtain system according to a third embodiment of the present invention.

The air curtain system 1 according to this embodiment may further include a second exhaust direction control means 80 that controls the discharge direction of air by controlling the angle of the casing 10.

The second exhaust direction control means 80 includes an installation stand 81 and an angle control means.

At the top of the casing 10, a stand insertion portion 82, into which the lower part of the installation stand 81 is rotatably inserted, is formed to open upward. An upper space 11 and a lower space 12 are sequentially formed below the stand insertion portion 82.

The installation stand 81 is installed above the casing 10 and is hinged to the lower part so that one upper side of the casing 10 is rotatable. A hinge protrusion 83 for hinge coupling of the casing 10 is formed at the lower part of the installation stand 81. A guide projection 84 that guides the rotation of the casing 10 is formed at a position spaced apart from the hinge projection 83 at the lower part of the installation stand 81.

A guide protrusion 84 is inserted into the stand insertion portion 82 of the casing 10, and a guide groove 85 is formed to be inclined upward and downward, and the guide groove 85 has a guide protrusion when fixing the angle of the casing 10. A plurality of fixing grooves 86 into which (84) is selectively inserted and fixed are formed to be connected and spaced apart. The fixing groove 86 is formed to be inclined upward from the guide groove 85.

The stand insertion portion 82 is formed in a shape whose cross-sectional area expands from the top to the bottom, and its upper cross-sectional area is formed to be wider than the lower cross-sectional area of the installation stand 81. Through this form, the casing 10 can rotate back and forth within a certain angle range in the left and right directions around the installation stand 81.

The rotation of the casing 10 is guided through the guide protrusion 84 and the guide groove 85, and when the casing 10 is positioned at the desired angle, the guide protrusion 84 is inserted into the fixing groove 86, The position of the casing 10 is fixed. When the guide protrusion 84 is inserted into the fixing groove 86, the inserted state of the guide protrusion 84 is maintained by the load of the casing 10 unless an external force is applied.

Angle adjustment is achieved by selectively inserting and fixing the guide protrusion 84 into the plurality of fixing grooves 86. The stand insertion portion 82, the guide protrusion 84, the guide groove 85, and the fixing groove 86 constitute the angle control means.

As described above, the air curtain system according to preferred embodiments of the present invention has been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above-described embodiments and may be implemented in various modifications within the scope of the patent claims. there is. For example, in the embodiment of the present invention, a magnet is provided at the top of the opening and closing member and is detachably fixed to the guide plate. However, this is not limited to this, and an electromagnet is provided on the back of the guide plate, so that the opening and closing member can be attached and detachable to the guide plate. It is also possible to fix it.

1: Air curtain system 10: Casing
11: upper space 12: lower space
13: Supply port 14: First exhaust port
15: second exhaust port 16: partition
17: transfer hole 20: blowing fan
30: first exhaust direction control means 31: blowing guide
32: opening and closing member 33: motor
34: Magnet 35: Airtight member
36: exhaust blade 40: first intake purification means
50: Embedded groove 60: Airflow induction passage
70: second intake purification means 80: second exhaust direction control means
81: installation stand 82: stand insertion part
83: Hinge projection 84: Guide projection
85: Guide groove 86: Fixing groove

Claims (17)

A casing formed with a supply port and an exhaust port;
A blowing fan installed in the casing to cause air flow; and
An air curtain system comprising; an exhaust direction control means connected to the casing to control the discharge direction of air. According to claim 1,
The exhaust port includes a first exhaust port formed toward the entrance and a second exhaust port formed toward the interior,
An air curtain system in which first and second exhaust passages are formed within the casing to guide air discharged from the blower fan to the first and second exhaust ports, respectively. According to clause 2,
The exhaust direction control means,
An air curtain system comprising a first exhaust direction control means provided in the casing and controlling an exhaust direction of air by selectively opening and closing the first and second exhaust passages. According to claim 1,
The exhaust direction control means,
An air curtain system comprising; a second exhaust direction control means for controlling the discharge direction of air by controlling the angle of the casing. According to clause 3,
The first exhaust direction control means,
an opening and closing member rotatably installed within the casing to selectively open and close the first and second exhaust passages; and
An air curtain system including; a motor installed in the casing to rotate the opening and closing member. According to clause 5,
The first exhaust direction control means,
It further includes a blowing guide installed in the casing to guide the air discharged from the blowing fan toward the exhaust port,
An air curtain system, wherein the blowing guide includes a pair of guide plates. According to clause 6,
An air curtain system wherein one end of the opening and closing member is rotatably coupled within the casing, and the other end of the opening and closing member is detachably fixed to a guide plate between the guide plates. According to clause 7,
An air curtain system in which the other end of the opening and closing member and the guide plate are fixed by magnetic force. According to clause 8,
The first exhaust direction control means,
An air curtain system further comprising a magnet provided at the other end of the opening and closing member and magnetically fixed to the guide plate. According to clause 9,
An air curtain system in which a magnet insertion groove is formed in the guide plate into which the magnet is removably inserted. According to clause 5,
The first exhaust direction control means,
An air curtain system further comprising an airtight member surrounding one end of the rotating part of the opening and closing member and the motor within the casing. According to clause 5,
The first exhaust direction control means,
An air curtain system further comprising exhaust blades provided at the first and second exhaust ports to enable vertical angle adjustment. According to clause 4,
The second exhaust direction control means,
An installation stand installed above the casing and hinged to a lower part to allow the casing to rotate; and
An air curtain system further comprising; angle control means for controlling a rotation angle of the casing with respect to the installation stand. According to claim 13,
The angle control means is,
A hinge protrusion provided at the lower part of the installation stand;
a guide protrusion provided at a lower portion of the installation stand to guide rotation of the casing;
a guide groove formed on the upper part of the casing into which the guide protrusion is inserted; and
An air curtain system comprising: a plurality of fixing grooves connected to the guide groove and into which the guide protrusion is inserted and fixed when fixing the position of the casing. According to claim 1,
An air curtain system further comprising a first intake purifying means provided at the air supply port. According to claim 1,
An air curtain system further comprising an airflow inducing passage formed in a ceiling portion where the casing is installed and guiding the flow of indoor air to the supply opening of the casing. In clause 16
An air curtain system further comprising a second intake purifying means provided at the entrance of the air flow guide passage.