KR102636311B1 - Ventilation purifier automatic operation system - Google Patents

Abstract

The present invention is a ventilation purifier capable of operating in a ventilation mode that exhausts indoor air to the outside and introduces outside air into the room and an air purification mode that purifies and circulates indoor air, and an indoor air quality meter that is located indoors and measures indoor air quality. , an outdoor air quality meter located outdoors that measures outdoor air quality, and a management server that determines an operation mode of the ventilation purifier based on indoor air quality information transmitted from the indoor air quality meter and outdoor air quality information transmitted from the outdoor air quality meter. It includes, the management server, a first condition that the outdoor temperature measured by the outdoor air quality meter is less than or equal to a reference temperature value, a second condition that the outdoor humidity measured by the outdoor air quality meter is greater than or equal to the standard humidity value, and the outdoor air quality. When at least one of the third condition, which is when a harmful gas is detected by the measuring device, and the fourth condition, which is when a bad odor is detected by the outdoor air quality measuring device, is satisfied, the operation mode of the ventilation purifier is automatically changed to the air purifying mode. It is about an automatic operation system for switching ventilation purifiers.

Description

Ventilation purifier automatic operation system {Ventilation purifier automatic operation system}

The present invention relates to an automatic ventilation system that operates to manage indoor air.

As the health environment of modern society improves, life expectancy increases and the general public's interest in health is increasing. However, air quality is worsening day by day due to the progress of industrialization and the use of fossil fuels, including the rapid increase in automobile use, and the concentration of various pollutants, including fine dust, is exceeding dangerous levels. Not only air pollution, but also the air quality indoors where we spend most of our time (more than 80-90%) is seriously polluted, but in most cases, this condition is left unrecognized.

Pollutants that pollute indoor air quality include fine dust (PM10, PM2.5) and volatile organic compounds (VOCs). These pollutants can be aggravated by cooking, smoking, and microorganisms, making indoor air worse than outdoor air. Therefore, in enclosed indoor spaces, the level of indoor pollution is generally 2 to 5 times higher than outdoors due to indoor pollutants and human activities, and in some cases, it is more than 100 times higher (U.S. Environmental Protection Agency EPA, 1987). Additionally, according to the World Health Organization (WHO), the number of deaths due to indoor air pollution reaches 2.8 million annually. According to the American Association for Cancer Research (AACR, 1995), for every 10㎍/㎥ increase in ultrafine dust concentration, the overall mortality rate increases by 7% and the mortality rate from cardiovascular and respiratory diseases increases by 12%.

These pollutants are managed in accordance with the 'Indoor Air Quality Management Act for Multi-Use Facilities, etc.', and strengthened maintenance and recommendation standards are applied to sensitive groups (children, the elderly, pregnant women, etc.) who are relatively affected. Indoor air quality pollution is a serious threat to the public and has a negative impact on health, so there is a need to measure, collect, and analyze indoor air in real time to determine the exact pollution status and respond accordingly.

The conventional ventilation purifier automatic operation system blocked outdoor air from flowing indoors only when the outdoor fine dust concentration was high, so when outdoor harmful gases or bad odors were generated, they flowed indoors. For example, there is a problem that bad odors generated from the livestock house flow into the house while the ventilation purifier is operating in ventilation mode.

The purpose of the present invention, which was devised to solve the above-mentioned problems, is to provide an automatic operation system for a ventilation purifier that can prevent outdoor harmful gases or odors from entering the room.

In addition, by providing an air purifying unit that is independently attachable and detachable from the main unit, the air purifying function can be selectively provided depending on the installation location, and the ventilation purifier automatic operation system allows for easy maintenance or replacement of the air purifying unit. is to provide.

In addition, another object of the present invention is to provide an automatic operation system for a ventilation purifier that can simplify the overall size by not installing a separate bypass filter.

According to the characteristics of the present invention for achieving the above-described object, the present invention can be operated in a ventilation mode that exhausts indoor air to the outside and introduces outside air into the room, and an air purification mode that purifies and circulates indoor air. A ventilation purifier, an indoor air quality meter located indoors and measuring indoor air quality, an outdoor air quality meter located outdoors and measuring outdoor air quality, and indoor air quality information transmitted from the indoor air quality meter and outdoor air quality transmitted from the outdoor air quality meter. and a management server that determines an operation mode of the ventilation purifier based on air quality information, wherein the management server sets a first condition in which the outdoor temperature measured by the outdoor air quality meter is less than or equal to a reference temperature value. At least one of the following is satisfied: a second condition in which the measured outdoor humidity is equal to or greater than the standard humidity value, a third condition in which a harmful gas is detected by the outdoor air quality measuring device, and a fourth condition in which a bad odor is detected in the outdoor air quality measuring device. In this case, it may include a ventilation purifier automatic operation system that automatically switches the operation mode of the ventilation purifier to the air purification mode.

In addition, the first condition is a temperature of -15°C or lower, the second condition is a humidity of 95% or more, the third condition is a state in which a harmful gas is detected by a harmful gas sensor, and the fourth condition is a state in which a harmful gas is detected. The sensor has detected a foul odor.

In addition, the ventilation purifier includes an indoor ventilation port through which indoor air flows in, an indoor air supply port through which air is supplied indoors, an outdoor outdoor outlet through which outdoor air flows in, an outdoor exhaust port through which indoor air is discharged to the outside, and the indoor air supply port. It may include a main body unit including a receiving portion formed between the indoor vents, and an air purifying unit detachably coupled to the receiving portion of the main body unit and filtering indoor air moved to the indoor air supply port through the indoor ventilating port. there is.

In addition, the main body unit includes a base member, a total heat exchange member disposed inside the base member, for exchanging heat between the indoor air and the outdoor air, and communicating the outdoor outdoor appliance and the indoor air supply port, and the outdoor air. A bypass path that allows outdoor air supplied from an outdoor appliance to bypass the heat exchange member and move to the indoor air supply port is installed adjacent to a portion of the base member where the outdoor appliance is located, and the outdoor appliance It may further include a first filter member that filters outdoor air supplied from.

In addition, the main body unit is slidably coupled to a portion of the base member adjacent to the total heat exchange member, and when moved in a direction closer to the total heat exchange member, the total heat exchange member is prevented from being separated from the base member. It may further include a separation prevention member positioned to prevent it.

In addition, the main body unit includes a first circulation member disposed adjacent to the indoor air supply port inside the base member, a second circulation member disposed adjacent to the outdoor exhaust port inside the base member, and the outdoor air outlet. A first damper member controlling the airflow moving from the bypass path to the bypass path, a second damper member controlling the airflow moving to the indoor air supply opening, a third damper member controlling the airflow moving to the outdoor air outlet, and the It may further include a fourth damper member that controls airflow moving to the outdoor exhaust port.

In addition, the main body unit may further include a second filter member installed inside the base member and filtering air flowing into the total heat exchange member through the indoor ventilation opening.

In addition, the main body unit includes a first opening through which the first filter member is brought in and out to the outside, a second opening through which the second filter member is brought in and out to the outside, and a third opening through which the total heat exchange member is brought in and out to the outside. , a first cover member detachably coupled to the base member and closing the first opening, a second cover member detachably coupled to the base member and closing the second opening, and a second cover member detachably coupled to the base member. It may be coupled and include a third cover member that closes the third opening.

In addition, the air cleaning unit includes a frame member, a portion of which is accommodated in the receiving portion, an opening and closing member installed in a portion of the frame member adjacent to the indoor ventilation opening and controlling an airflow flowing into the frame member, and the frame member. It may include a clean filter assembly installed inside, detachably coupled to the frame member, and filtering air flowing into the air cleaning unit, and a housing member coupled to an externally exposed portion of the frame member. .

Additionally, the frame member includes a first frame portion and a second frame portion positioned to be spaced apart from the first frame portion, and a portion of each of the first frame portion and the second frame portion to which the clean filter assembly is coupled. A multi-stage portion having a multi-stage shape is formed on both the inner and outer sides, and a coupling portion having a multi-stage shape may be formed in the receiving portion to correspond to the outer side of the multi-stage portion.

In addition, the clean filter assembly surrounds the first clean filter, the second clean filter, and the third clean filter arranged side by side so that one side is in close contact with each other, and the first clean filter, the second clean filter, and the third clean filter, It may include a border member formed to have a step at a portion corresponding to the boundary of each of the first clean filter, the second clean filter, and the third clean filter.

Additionally, each of the first clean filter, the second clean filter, and the third clean filter may be positioned in a one-to-one correspondence with each stage inside the multi-stage unit.

The present invention includes a bypass mode that introduces outdoor air into the room, a ventilation mode that exhausts indoor air to the outside and introduces outside air into the room, and an air purifier that purifies and circulates indoor air while blocking outdoor air from entering the room. In the automatic operation method of a ventilation purifier that controls a ventilation purifier capable of operating in any mode, the operation step of operating the ventilation purifier in bypass mode or ventilation mode, the detection step of detecting outdoor temperature, humidity, harmful gas, and odor, and outdoor A ventilation purifier automatic operation method may be included, including a switching step of switching the ventilation purifier to an air purification mode when any one selected from temperature and humidity exceeds the allowable value or when harmful gases or odors are generated.

Additionally, in the conversion step, if the outdoor temperature is -15°C or lower or the outdoor humidity is 95% or higher, the ventilation purifier may be switched to the air purifying mode.

According to the present invention, it is possible to provide an automatic operation system for a ventilation purifier that can prevent indoor air from being polluted.

In addition, it is possible to provide an automatic ventilation purifier operation system in which the air purifier unit is independently attachable and detachable, and maintenance can be performed quickly and easily by detaching the air purifier unit.

In addition, the filter member used for ventilation can be used during bypass operation without installing a separate bypass filter, thereby reducing the overall size and improving management convenience.

In addition, it is possible to provide an automatic operation system for a ventilation purifier that prevents the heat exchange member from falling and allows maintenance work on the heat exchange member to proceed safely.

Figure 1 is a configuration diagram showing an automatic operation system for a ventilation purifier according to an embodiment of the present invention.
Figure 2 is a perspective view showing a ventilation purifier.
Figure 3 is a view showing the ventilation purifier from the front.
Figure 4 is a diagram showing the main unit and the air purifying unit separated from each other in the ventilation purifier.
Figure 5 is a diagram showing a state in which a dummy member is coupled to the receiving portion of the main unit.
Figure 6 is a view of the main unit with the air purifying unit removed, looking downward from above.
Figure 7 is a diagram showing an excerpt of an air purifying unit.
Figure 8 is a diagram showing a state in which the clean filter assembly is separated from the air clean unit.
Figure 9 is a diagram showing the interior of the air cleaning unit.
Figure 10 is a diagram showing a state in which the clean filter assembly has been removed from the air clean unit.
Figure 11 is a cross-sectional view taken along line A-A' in the ventilation purifier of Figure 1.
Figure 12 is an exploded perspective view showing a ventilation purifier.
Figure 13 is a diagram for explaining the operation process of the separation prevention member.
Figures 14 to 16 are diagrams for explaining the operation process of the ventilation purifier.
Figure 17 is a flowchart showing a method of automatically operating a ventilation purifier according to an embodiment of the present invention.

Hereinafter, embodiments related to the present invention will be illustrated in the drawings and described in detail through detailed description. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, and should be understood to include all changes, equivalents, and substitutes included in the spirit and technical scope of the present invention. .

In describing the components of the present invention, terms such as first, second, A, B, (a), (b), etc. may be used. These terms are only used to distinguish the component from other components, and the nature, sequence, or order of the component is not limited by the term. Additionally, in this specification, when a component is described as being “connected,” “coupled,” or “connected” to another component, the component may be directly connected or connected to the other component, but each component It should be understood that another component may be “connected,” “coupled,” or “connected” between elements. In the case of "connection", "coupling" or "connection", it is understood to be physically "connected", "coupled" or "connected" as well as electrically "connected", "coupled" or "connected" as required. It can be.

Terms such as “unit”, “unit”, “character”, and “module” used in this specification refer to a unit that processes at least one function or operation, which is hardware, software, or hardware. and software. In addition, terms such as “include,” “comprise,” or “have” used in this specification mean that the corresponding component may be included, unless specifically stated to the contrary, and thus exclude other components. It should be interpreted as being able to include other components.

In addition, it is intended to be clear that the division of components in this specification is merely a division according to the main function each component is responsible for. That is, two or more components, which will be described below, may be combined into one component, or one component may be divided into two or more components for more detailed functions. In addition to the main functions it is responsible for, each of the component parts described below may additionally perform some or all of the functions handled by other components, and some of the main functions of each component may be performed by other components. Of course, it can also be carried out exclusively by .

Hereinafter, an automatic operation system for a ventilation purifier according to an embodiment of the present invention will be described with reference to drawings related to embodiments of the present invention.

Figure 1 is a configuration diagram showing an automatic operation system for a ventilation purifier according to an embodiment of the present invention.

Referring to FIG. 1, the ventilation purifier automatic operation system 1000 according to an embodiment of the present invention may include a ventilation purifier 100, an indoor air quality meter 200, an outdoor air quality meter 300, and a management server 400. You can.

The ventilation purifier 100 can be operated in a ventilation mode in which indoor air is discharged to the outside and outside air is introduced into the room, and an air purification mode in which indoor air is purified and circulated. For example, the ventilation purifier 100 can operate in a ventilation mode in which indoor air is discharged to the outside and external air is introduced into the room at the same time, and an air purification mode in which indoor air is purified and circulated.

For example, when the outdoor air quality is good and the indoor air quality is poor, the ventilation purifier 100 may operate in the ventilation mode, and when the outdoor air quality is poor and the indoor air quality is poor, the ventilation purifier 100 may operate in the air purification mode. Additionally, a bypass mode that introduces outdoor air into the room can also be operated.

Such a ventilation purifier 100 is installed indoors in a building (S), is connected to a management server 400 to be described later through a separate network (N), and can be controlled by the management server 400. The operation mode of the ventilation purifier 100 may be determined according to a mode decision signal transmitted from the management server 400.

The ventilation purifier 100 may change the air volume intensity in each mode depending on the outdoor air quality and indoor air quality. For example, the ventilation purifier 100 may operate at an air volume intensity corresponding to the air volume determination signal received from the management server 400.

The indoor air quality meter 200 is located indoors and measures indoor air quality. For example, indoor air quality measured by the indoor air quality meter 200 may include indoor fine dust concentration, indoor carbon dioxide concentration, and indoor volatile organic compound concentration.

In addition, the indoor air quality meter 200 can be located separately from the ventilation purifier 100 in order to measure the air quality in the actual location where the user is located, and the measured indoor air quality information can be transmitted through the network (N) as described later. It can be provided by the management server 400.

Here, the network (N) refers to a connection structure that allows information exchange between nodes such as terminals and servers. Examples of such networks (N) include the Internet, LAN (Local Area Network), Includes, but is not limited to, Wireless LAN (Wireless Local Area Network), WAN (Wide Area Network), PAN (Personal Area Network), 3G, 4G, 5G, LTE, Wi-Fi, etc. The Internet uses the TCP/IP protocol and several services that exist at its upper layer, such as HTTP (Hyper Text Transfer Protocol), Telnet, FTP (File Transfer Protocol), DNS (Domain Name System), SMTP (Simple Mail Transfer Protocol), and SNMP. It refers to an open computer network (N) structure that provides (Simple Network Management Protocol), NFS (Network File Service), and NIS (Network Information Service).

The outdoor air quality meter 300 is located outdoors and measures outdoor air quality. The outdoor air quality measuring device 300 for this may include, for example, a temperature sensor 310, a humidity sensor 320, an odor sensor 330, and a harmful gas sensor 340. There may be more than one such outdoor air quality measuring device 300. The outdoor air quality meter 300 may be placed in various locations around the building (S). For example, the outdoor air quality meter 300 may be installed in a portion of the ventilation purifier 100 where external air flows in. Preferably, the outdoor air quality measuring device 300 can be installed in a direction from which the wind frequently blows.

Meanwhile, the outdoor air quality measured by the outdoor air quality meter 300 may include the outdoor fine dust concentration. At this time, the fine dust measurement method of the outdoor air quality meter 300 may be implemented as a light scattering method, beta ray method, mass method, etc. Additionally, the outdoor air quality meter 300 may provide the measured outdoor air quality information to the management server 400, which will be described later, through the network (N).

The management server 400 determines the operation mode of the ventilation purifier 100 based on the indoor air quality information transmitted from the indoor air quality meter 200 and the outdoor air quality information transmitted from the outdoor air quality meter 300.

The management server 400 provides a first condition in which the outdoor temperature measured by the outdoor air quality measuring device 300 is less than or equal to a reference temperature value, and a second condition in which the outdoor humidity measured by the outdoor air quality measuring device 300 is equal to or greater than the reference humidity value. The ventilation purifier ( 100) automatically switches the operation mode to the air purification mode.

Specifically, the first condition may be a temperature of -15°C, and the second condition may be a humidity of 95% or more. And, the third condition may be a state in which a harmful gas is detected by the harmful gas sensor 340, and the fourth condition may be a state in which a bad odor is detected in the odor sensor 330. The ventilation purifier 100 can be switched to the air purifying mode even if only one of the first to fourth conditions described above is met.

Here, the harmful gas sensor 340 may be a thin film sensor that detects harmful gas. Harmful gases that can be measured by a harmful gas sensor may include, for example, ammonia, hydrogen sulfide, formaldehyde, sulfur oxides, nitrogen oxides, oxidants, hydrocarbons, fluorine compounds, and carbon monoxide.

Additionally, odors that can be measured by the odor sensor 330 include, for example, ammonia, methylmercaptan, hydrogen sulfide, dimethylsulfide, dimethyldisulfide, Trimethylamine, acetaldehyde, styrene, propionaldehyde, butylaldehyde, n-valeraldehyde, i-valeraldehyde , toluene, xylene, methylethyl ketone, methylisobutylketone, butyl acetate, propionic acid, n-butyric acid ), n-valeric acid, i-valeric acid, and i-butyl alcohol.

Additionally, the management server 400 can also determine the wind volume intensity in a specific operation mode. For this purpose, the ventilation purifier 100 measures the outdoor fine dust concentration measured by the outdoor air quality meter 300, the indoor fine dust concentration measured by the indoor air quality meter 200, the indoor carbon dioxide concentration, and the indoor volatile organic compound concentration. The operating mode of the ventilation purifier 100 may be determined based on the outdoor fine dust concentration, the indoor fine dust concentration, the indoor carbon dioxide concentration, and the indoor volatile organic compound concentration.

Additionally, the management server 400 may transmit a mode decision signal corresponding to the determined operation mode to the ventilation purifier 100 through the network N.

Meanwhile, the management server 400 uses the received outdoor fine dust concentration, indoor fine dust concentration, indoor carbon dioxide concentration, and indoor volatile organic compound concentration to increase the air volume intensity in each operation mode of the ventilation purifier 100. can be decided. Additionally, the management server 400 may transmit an air volume determination signal corresponding to the determined air volume intensity to the ventilation purifier 100 through the network (N).

The ventilation purifier automatic operation system 1000 according to the embodiment of the present invention as described above allows the ventilation purifier 100 to operate in the air purification mode when the outdoor air condition is poor, thereby preventing outdoor air from flowing into the room. You can prevent indoor air from being polluted by blocking it.

As described above, the conventional ventilation purifier automatic operation system blocks outdoor air from flowing indoors only when the outdoor fine dust concentration is high, so there is a problem in that outdoor harmful gases or odors directly flow into the indoor room. However, the ventilation purifier automatic operation system 1000 according to an embodiment of the present invention can maintain comfortable indoor air by blocking harmful gases or bad odors from entering the room. In addition, by blocking external moisture or cold air from entering the room, users can maintain comfortable air conditions for breathing.

Hereinafter, the above-described ventilation purifier will be described with reference to the drawings.

FIG. 2 is a perspective view showing a ventilation purifier, FIG. 3 is a view showing the ventilation purifier from the front, FIG. 4 is a view showing the main unit and the air purifying unit separated from each other in the ventilation purifier, and FIG. 5 is a view showing the main unit. This is a diagram showing a state in which a dummy member is coupled to the receiving portion of .

Referring to FIGS. 2 to 4 , the ventilation cleaner 100 may include a main body unit 120 and an air cleaning unit 110.

The main body unit 120 may be the body of the ventilation purifier 100, and an air purifying unit 110, which will be described later, may be coupled thereto. The main body unit 120 can introduce outdoor air into the room or exhaust indoor air outside. The main unit 120 for this purpose includes an indoor ventilation port (L1) through which indoor air flows in, an indoor air supply port (L2) through which indoor air is introduced, an outdoor outdoor device (V1) through which outdoor air flows in, and exhaust indoor air to the outside. It may include an outdoor exhaust port (V2). A detailed description of the main body unit 120 will be provided later.

The air cleaning unit 110 is detachably coupled to the main body unit 120. The air purifying unit 110 may filter indoor air moving to the indoor air supply port L2 through the indoor vent L1 and supply the purified air back into the room. A detailed description of the air cleaning unit 110 will be provided later.

Meanwhile, in the main unit 120, a receiving portion 126 may be formed between the indoor air supply port L2 and the indoor ventilation port L1. The receiving portion 126 is formed to be retractable to accommodate, for example, the air cleaning unit 110. The air cleaning unit 110 may be detachably coupled to the receiving portion 126. To this end, a portion of the air cleaning unit 110 may be fastened to the main unit 120 using a fastening means such as a bolt while being accommodated in the receiving portion 126. However, the air cleaning unit 110 and the main unit 120 ) is not limited to the above method.

Accordingly, when the air cleaning unit 110 requires repair or replacement of internal parts, only the air cleaning unit 110 can be separated from the main unit 120 and maintenance work on the air cleaning unit 110 can be performed. You can. Therefore, the air purifying unit 110 can be quickly maintained without disassembling the entire ventilation purifier 100.

In addition, as shown in FIG. 5, when the ventilation cleaner 100 is installed in a place where the air cleaning function is not required, the dummy member 130 is placed in the receiving portion 126 with the air cleaning unit 110 removed. By combining, the receiving portion 126 can be closed. In other words, since the air purification function can be selectively provided depending on the installation location, the range of choices regarding the function of the ventilation purifier 100, installation cost, etc. can be expanded.

For example, the dummy member 130 may be fastened to the main body unit 120 to close the receiving portion 126 by a separate fastening means. Alternatively, although not shown in the drawings, the dummy member 130 may be slidably or rotatably coupled to the main body unit 120 to selectively expose the receiving portion 126. The method of coupling the dummy member 130 and the main body unit 120 is not limited to a specific method.

Meanwhile, if the user is using the ventilation purifier 100 without the air cleaning unit 110 installed and wants to use the air cleaning function, the dummy member 130 is removed from the main unit 120 and accommodated. The air cleaning unit 110 can be additionally installed and used in the unit 126.

Hereinafter, the air cleaning unit 110 will be described in detail with reference to the drawings.

Figure 6 is a view of the main unit with the air cleaning unit removed, viewed from above, Figure 7 is a view showing an excerpt of the air cleaning unit, and Figure 8 shows the clean filter assembly separated from the air cleaning unit. It is a diagram, FIG. 9 is a diagram showing the inside of the air cleaning unit, and FIG. 10 is a diagram showing a state in which the clean filter assembly has been removed from the air cleaning unit.

Referring to FIGS. 6 to 10 , the air cleaning unit 110 may include, for example, a frame member 111, an opening and closing member 113, a clean filter assembly 114, and a housing member 115.

A portion of the frame member 111 is accommodated in the receiving portion 126. The frame member 111 can accommodate an opening and closing member 113 and a clean filter assembly 114, which will be described later.

When the ventilation purifier 100 according to an embodiment of the present invention performs an air cleaning operation, the indoor air flowing in through the indoor ventilation port L1 passes through the inside of the frame member 111 and reaches the indoor air supply port L2. It can be supplied indoors again. This frame member 111 may include, for example, a first frame portion 111A and a second frame portion 111B positioned to be spaced apart from the first frame portion 111A.

The opening and closing member 113 is installed in a portion of the frame member 111 adjacent to the indoor ventilation opening L1. The opening and closing member 113 can control the airflow flowing into the frame member 111.

In more detail, the opening and closing member 113 moves air flowing in through the indoor ventilation port L1 to one selected from the indoor air supply port L2 and the total heat exchange member 121. At this time, the opening/closing member 113 may be implemented as an electric damper, and opening/closing may be controlled in conjunction with the operation mode.

The clean filter assembly 114 is installed inside the frame member 111 and is detachably coupled to the frame member 111. The cleaning filter assembly 114 filters the air flowing into the air cleaning unit 110.

When indoor air flows into the indoor ventilation port (L1), passes through the air cleaning unit 110, and moves to the indoor supply port (L2), the clean filter assembly 114 removes fine dust, foreign substances, and odors contained in the indoor air. It can be removed. A detailed description of the clean filter assembly 114 will be provided later.

The housing member 115 is coupled to an externally exposed portion of the frame member 111. The housing member 115 may be partially open. Additionally, a replacement cover 116, which will be described later, may be detachably coupled to the housing member 115.

The replacement cover 116 can open or close the open portion of the housing member 115. The clean filter assembly 114 may be installed in the air clean unit 110 through the open portion of the housing member 115. With the clean filter assembly 114 accommodated inside the frame member 111, the replacement cover 116 closes the open portion of the housing member 115 so that the clean filter assembly 114 is separated from the frame member 111. You can prevent it from happening.

Meanwhile, the portion where the clean filter assembly 114 is coupled to each of the first frame portion 111A and the second frame portion 111B has a multi-stage portion 112 in which both the inner side 112B and the outer side 112A have a multi-stage shape. ) can be formed. For example, this multi-stage portion 112 may be shaped like a plate, and its external size and internal width may gradually decrease or increase in steps.

Meanwhile, the above-described clean filter assembly 114 may include, for example, a first clean filter (G1), a second clean filter (G2), a third clean filter (G3), and an edge member 114a.

The first clean filter (G1), the second clean filter (G2), and the third clean filter (G3) may be arranged side by side so that one surfaces are in close contact with each other. For example, the first clean filter (G1) may be a pre-filter, the second clean filter (G2) may be a deodorizing filter, and the third clean filter (G3) may be a HEPA filter.

The border member 114a surrounds the first clean filter (G1), the second clean filter (G2), and the third clean filter (G3), and surrounds the first clean filter (G1), the second clean filter (G2), and the third clean filter (G3). The portion corresponding to the boundary of each third clean filter G3 may be formed to have a step.

This edge member 114a may be formed integrally with the first clean filter (G1), the second clean filter (G2), and the third clean filter (G3). Differently, the first clean filter (G1), the second clean filter (G2), and the third clean filter (G3) may be separated from each other, and may also be separated from the edge member 114a. Therefore, it may be possible to individually replace only those that require replacement among the first clean filter (G1), second clean filter (G2), and third clean filter (G3).

Meanwhile, the peripheral surface of the edge member 114a may be formed in a shape corresponding to the inner side 112B of the multi-end portion 112. Therefore, when the clean filter assembly 114 is coupled to the multi-stage portion 112, the clean filter assembly 114 and the multi-stage portion 112 are strongly adhered to each other compared to the case where the multi-stage portion 112 is not included. Cohesion can be improved. Accordingly, the air cleaning effect can be improved by preventing indoor air from being lost through the gap between the cleaning filter assembly 114 and the multi-stage portion 112 while passing through the air cleaning unit 110.

Meanwhile, the border member 114a may also be formed integrally with the replacement cover 116 described above. Accordingly, as shown in FIG. 8, when a user removes the replacement cover 166 from the air cleaning unit 110, the clean filter assembly 114 may also be separated along with the replacement cover 166. Therefore, replacement of the clean filter assembly 114 can proceed quickly.

Meanwhile, each of the above-described first clean filter (G1), second clean filter (G2), and third clean filter (G3) is located at each stage (M1, M2, It can be positioned to correspond one-to-one to M3). For example, the multi-end portion 112 may include a first end (M3), a second end (M2), and a third end (M1). At this time, the first clean filter (G1) is located inside the first end (M3), the second clean filter (G2) is located inside the second end (M2), and the third clean filter (G3) It may be located inside the third end (M1).

Meanwhile, a coupling portion 127 having a multi-stage shape may be formed in the receiving portion 126 of the aforementioned main body unit 120 to correspond to the outer side 112A of the multi-stage portion 112. As described above, the multi-stage portion 112 may have a multi-stage shape with both the inner side 112B where the clean filter assembly 114 is coupled and the outer side 112A where the main body unit 120 is coupled.

Accordingly, when the air cleaning unit 110 is coupled to the main unit 120, the coupling portion 127 can be in close contact with the outer side 112A of the multi-stage portion 112 without a gap. Therefore, it not only prevents indoor air introduced through the indoor air supply port (L2) from being lost between the coupling portion 127 and the multi-stage portion 112, but also prevents the air cleaning unit 110 from being combined with the main unit 120. This can be maintained stably.

Hereinafter, the main unit 120 included in the ventilation purifier 100 according to an embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 11 is a cross-sectional view taken along line A-A' of the ventilation purifier of FIG. 2, FIG. 12 is an exploded perspective view showing the ventilation purifier, and FIG. 13 is a diagram for explaining the operation process of the separation prevention member.

11 to 13, the main body unit 120 may include, for example, a base member 125, a total heat exchange member 121, a bypass path 122, and a first filter member (F1). .

The base member 125 may include an internal space. The internal space of the base member 125 may be divided into multiple spaces. Each divided space may be in communication with an indoor ventilation opening (L1), an indoor air supply opening (L2), an outdoor outdoor opening (V1), and an outdoor exhaust opening (V2).

Based on the direction shown in FIG. 11, the indoor ventilation port (L1) and the indoor air supply port (L2) may be located on the upper side of the base member 125, and the outdoor outdoor vent (V1) and the outdoor exhaust port (V2) may be located on the base member. It may be located below (125). For convenience of assembly, the base member 125 may be configured so that the two members are individually manufactured and then coupled to each other.

The total heat exchange member 121 is disposed at a position where indoor air and outdoor air intersect each other inside the base member 125, and exchanges heat between the indoor air and outdoor air.

The bypass path 122 communicates with the outdoor outdoor device (V1) and the indoor air supply port (L2), and allows outdoor air supplied from the outdoor outdoor device (V1) to bypass the heat exchange member 121 and the indoor air supply port (L2). Move it to the indoor air supply port (L2). For example, the bypass path 122 for this starts between the total heat exchange member 121 and the first filter member (F1), which will be described later, and extends upward past the outdoor exhaust port (V2) to reach the indoor air supply port (L2). can be connected with

The first filter member F1 is installed inside the base member 125 adjacent to a portion where the outdoor outdoor device V1 is located, and filters outdoor air supplied from the outdoor outdoor device V1. This first filter member (F1) can filter fine dust contained in outdoor air.

In contrast, when a separate bypass filter is installed to filter out foreign substances moving on the bypass path 122, the size of the main unit 120 is bound to increase by the space occupied by the bypass filter.

However, in the ventilation purifier 100 according to an embodiment of the present invention, outdoor air can be filtered by the first filter member (F1) used during ventilation and then supplied to the heat exchange member 121 or the bypass path 122. there is. That is, since the first filter member F1 can be commonly used for both air cleaning operation and bypass operation, the size of the ventilation purifier 100 can be miniaturized. In addition, the first filter member (F1) can prevent the problem of foreign substances such as dust accumulating in the heat exchange member 121, and through this, the heat exchange efficiency of the heat exchange member 121 can be improved. The life of the member 121 can be extended.

Meanwhile, the main body unit 120 may include a second filter member (F2).

The second filter member (F2) is installed inside the base member (125) and filters air flowing into the heat exchange member (121) through the indoor ventilation hole (L1). The second filter member F2 can filter fine dust or foreign substances contained in indoor air and supply the filtered air to the heat exchange member 121.

Therefore, contamination of the total heat exchange member 121 by fine dust or foreign substances can be minimized, and the maintenance period of the total heat exchange member 121 can be delayed. This second filter member (F2) can be replaced quickly and conveniently, and a detailed description of the main body unit 120 for this will be described later.

Meanwhile, if the main body unit 120 is described in more detail, the main body unit 120 may include, for example, a first opening 125a, a second opening 125b, and a third opening 125c.

The first opening 125a allows the first filter member F1 to go in and out. The first opening 125a for this purpose may be opened in a size corresponding to one side of the first filter member F1. The first filter member F1 can be easily replaced through the first opening 125a.

The second opening 125b allows the second filter member F2 to go in and out. The second opening 125b for this purpose may be opened in a size corresponding to one side of the second filter member F2. The second filter member F2 can be easily replaced through the second opening 125b.

The third opening 125c allows the total heat exchange member 121 to go in and out. The third opening 125c for this purpose may be opened in a size corresponding to one side of the total heat exchange member 121.

When the ventilation purifier 100 according to an embodiment of the present invention is operated for a long time, dust may accumulate in the total heat exchange member 121, and this total heat exchange member 121 is easily opened through the first opening 125a. It can be separated and cleaned or replaced.

And, the main body unit 120 may include, for example, a first cover member (C1), a second cover member (C2), and a third cover member (C3).

The first cover member C1 is detachably coupled to the base member 125 and closes the first opening 125a. If replacement of the first filter member (F1) is necessary, the user may remove the first cover member (C1), then remove the existing first filter member (F1) and install the new first filter member (F1). .

The second cover member C2 is detachably coupled to the base member 125 and closes the second opening 125b. If replacement or cleaning of the second filter member (F2) is required, the user must remove the second cover member (C2), then remove the existing second filter member (F2) and install a new second filter member (F2). Cleaning operations can be performed on the installed or existing second filter element (F2).

The third cover member C3 is detachably coupled to the base member 125 and closes the third opening 125c. If replacement or maintenance of the heat exchange member 121 is necessary, the user removes the third cover member (C3) and then separates the heat exchange member 121 from the base member 125 to perform replacement or maintenance work. can do.

Meanwhile, the main body unit 120 includes, for example, a first circulation member (N1), a second circulation member (N2), a first damper member (D1), a second damper member (D2), and a third damper member (D3). and a fourth damper member D4.

The first circulation member (N1) is installed adjacent to the portion where the indoor air supply opening (L2) is located inside the base member (125). The first circulation member (N1) generates a suction force to generate an airflow in a direction toward the indoor air supply opening (L2).

The ventilation purifier 100 according to an embodiment of the present invention can broadly perform three operation modes: ventilation operation, bypass operation, and air purification operation. The first circulation member (N1) supplies indoor air or outdoor air to the indoor air supply port (L2) in the three operation modes. The first circulation member N1 for this may be, for example, a rotating fan.

The second circulation member N2 is installed adjacent to a portion of the base member 125 where the outdoor exhaust port V2 is located. The second circulation member (N2) generates a suction force to generate an airflow in a direction toward the outdoor exhaust port (V2).

For example, in ventilation operation, air flowing in through the indoor ventilation port (L1) can be discharged through the outdoor exhaust port (V2). The second circulation member N2 for this may be, for example, a rotating fan. The second circulation member N2 may be arranged vertically to minimize the area occupied in the internal space of the base member 125, but the arrangement of the second circulation member N2 may vary depending on the design of the main body unit 120. It can be variable.

The first damper member D1 is installed adjacent to the outdoor appliance V1 in the bypass path 122. The first damper member D1 controls the airflow moving to the bypass path 122. When the first damper member D1 closes the bypass path 122, outdoor air flowing in from the outdoor device V1 may be moved to the total heat exchange member 121. On the contrary, when the first damper member D1 opens the bypass path 122, the outdoor air flowing in from the outdoor air outlet V1 moves to the bypass path 122 and flows to the indoor air supply port L2. can be supplied.

The second damper member D2 is installed adjacent to the indoor air supply opening L2. The second damper member (D2) controls the airflow moving to the indoor air supply opening (L2). The second damper member D2 may open or close the indoor air supply port L2 to allow or prevent air from being supplied into the indoor space.

The third damper member D3 is installed adjacent to the outdoor device V1. The third damper member D3 controls the airflow moving to the outdoor device V1.

The fourth damper member D4 is installed adjacent to the outdoor exhaust port V2. The fourth damper member D4 controls the airflow moving to the outdoor exhaust port V2. The fourth damper member D4 may be installed adjacent to the second circulation member N2 in the outdoor exhaust port V2.

This fourth damper member D4 may be operated in conjunction with the operation of the second circulation member N2. For example, when the second circulation member N2 is operated, the fourth damper member D4 opens the outdoor exhaust port V2, and when the operation of the second circulation member N2 is stopped, the fourth damper member D4 ) can close the outdoor exhaust port (V2).

Meanwhile, the main body unit 120 may further include a separation prevention member 124.

The separation prevention member 124 is slidably coupled to a portion of the base member 125 adjacent to the total heat exchange member 121. When the separation prevention member 124 moves in a direction closer to the total heat exchange member 121, it may be positioned to prevent the total heat exchange member 121 from being separated from the base member 125.

On the contrary, when the separation prevention member 124 moves in a direction away from the heat exchange member 121, the separation prevention member 124 is positioned so as not to interfere with the movement of the heat exchange member 121, thereby preventing heat exchange. The member 121 may be in a state where it can be separated from the base member 125.

When the ventilation purifier 100 according to an embodiment of the present invention is operated for a long time, dust may accumulate in the heat exchange member 121. In this case, cleaning or replacement of the total heat exchange member 121 may be necessary. Even if the user separates the third cover member C3 from the base member 125 in order to separate the total heat exchange member 121 from the base member 125, the separation prevention member 124 prevents the total heat exchange member 121 from coming off. By blocking, it is possible to prevent the total heat exchange member 121 from falling and being damaged.

Figures 14 to 16 are diagrams for explaining the operation process of the ventilation purifier. Specifically, FIG. 14 is a diagram showing a state in which the ventilation purifier is in air purifying operation, FIG. 15 is a diagram showing a state in which the ventilation purifier is in ventilation operation, and FIG. 16 is a diagram showing a state in which the ventilation purifier is in bypass operation. It is a drawing.

First, referring to FIG. 14, the air clean operation improves indoor air quality by circulating indoor air. To this end, when the ventilation purifier 100 according to an embodiment of the present invention performs an air cleaning operation, the second damper member D2 opens the indoor air supply port L2, and the remaining first damper member D1 , the third damper member D3 and the fourth damper member D4 close the surrounding space.

And, in a state in which the opening and closing member 113 of the air cleaning unit 110 is operated (opened) to open the interior of the frame member 111, the first circulation member N1 can be operated. Accordingly, an airflow is generated toward the indoor air supply opening L2 by the suction force of the first circulation member N1. The indoor ventilation port (L1) and the air cleaning unit 110 are brought into a state of relatively negative pressure compared to the room by the first circulation member (N1), and indoor air flows into the indoor venting port (L1), and the cleaning filter assembly 114 As it passes through, it is filtered and foreign substances are filtered out and deodorization is achieved.

Finally, the purified air may pass through the first circulation member (N1) and be supplied back to the indoor air supply port (L2). At this time, since the outdoor outdoor device V1 is closed by the third damper member D3 and the outdoor exhaust port V2 is closed by the fourth damper member D4, the outdoor exhaust port V2 or the outdoor outdoor device V2 is closed by the fourth damper member D4. Air does not move toward (V1), and only the indoor air circulates, purifying the indoor air.

When performing such an air purifying operation, the ventilation purifier 100 according to an embodiment of the present invention reduces the flow resistance because the circulating indoor air does not pass through the heat exchange member 121, so that air circulation becomes smoother. , noise and device vibration due to air flow can be reduced. In addition, since air does not pass through the heat exchange member 121 when performing the air clean operation, there is an effect of reducing energy loss by reducing static pressure loss.

Next, referring to FIG. 15, the ventilation operation exhausts indoor air to the outdoors and supplies outdoor air to the indoor room. To this end, when the ventilation purifier 100 according to an embodiment of the present invention performs a ventilation operation, the second damper member D2 opens the indoor air supply port L2, and the fourth damper member D4 opens the outdoor air supply port L2. The exhaust port V2 is opened, the third damper member D3 operates to open the outdoor air vent V1, and the first damper member D1 operates to close the bypass path 122. In this state, the first circulation member (N1) and the second circulation member (N2) operate.

Thereafter, the indoor air sequentially passes through the second filter member (F2) and the total heat exchange member 121 through the indoor ventilation port (L1) by the suction force of the second circulation member (N2) and passes through the second circulation member (N2). It passes through and is supplied to the outdoors through the outdoor exhaust port (V2). And the outdoor air sequentially passes through the first filter member (F1) and the heat exchange member 121 through the outdoor device (V1) by the suction force of the first circulation member (N1) and passes through the first circulation member (N1). It passes through and is supplied indoors through the indoor supply port (L2).

When performing this ventilation operation, the ventilation purifier 100 according to an embodiment of the present invention exchanges heat between the air discharged outdoors through the indoor ventilation port L1 and the air supplied indoors through the outdoor outdoor device V1. Since mutual heat exchange occurs while passing across the members 121, ventilation can be performed while minimizing heat loss in the indoor space.

In addition, when performing a ventilation operation, the opening and closing member 113 of the air cleaning unit 110 closes the frame member 111, so indoor air does not pass through the cleaning filter assembly 114. In this way, the ventilation purifier 100 according to an embodiment of the present invention extends the life of the clean filter assembly 114 because the air discharged to the outside while performing the ventilation operation does not pass through the clean filter assembly 114 unnecessarily. In addition, the flow resistance of the discharged air can be reduced, so ventilation operation can be performed smoothly and flow noise and vibration of the device can be reduced.

Finally, referring to FIG. 16, bypass operation supplies outdoor air directly indoors without heat exchange. To this end, when the ventilation purifier 100 according to an embodiment of the present invention performs bypass operation, the third damper member D3 opens the outdoor device V1, and the first damper member D1 By opening the bypass path 122, the second damper member D2 can open the indoor air supply port L2, and only the fourth damper member D4 can close the outdoor exhaust port V2.

In this state, only the first circulation member (N1) operates, and the second circulation member (N2) does not operate. Accordingly, the outdoor air is filtered in the first filter member (F1) through the outdoor appliance (V1) by the suction force of the first circulation member (N1), and is moved along the bypass path 122 to the first circulation member (N1). It passes through (N1) and is supplied indoors through the indoor supply port (L2). At this time, since the internal pressure of the total heat exchange member 121 is relatively higher than that of the bypass path 122, the outdoor air filtered by the first filter member F1 is hardly moved to the total heat exchange member 121, and relatively It may be moved to a low pressure bypass path 122.

As such, in the ventilation purifier 100 according to an embodiment of the present invention, the first filter member F1 used for ventilation can be used even during bypass operation without including a separate bypass filter, so bypass operation is possible. The overall size can be reduced by the space for installing the filter. In addition, by performing bypass operation, clean air from outside can be directly supplied into the room. Additionally, when the outside air is colder than the inside, the inside can be quickly cooled using the outside cold air, resulting in improved energy efficiency. In addition, the outdoor air is filtered by the relatively high-performance first filter member F1 and then supplied indoors, thereby preventing fine dust or foreign substances from entering the room.

Figure 17 is a flowchart showing a method of automatically operating a ventilation purifier according to an embodiment of the present invention.

Referring to FIG. 17, the ventilation purifier automatic operation method (S100) according to an embodiment of the present invention includes a bypass mode for introducing outdoor air into the room, a ventilation mode for discharging indoor air to the outside and introducing outside air into the room, and A ventilation purifier automatic operation method (S100) for controlling a ventilation purifier capable of operating in an air purification mode that purifies and circulates indoor air while blocking outdoor air from entering the room, comprising an operation step (S110) and a detection step (S120). and a conversion step (S130).

In the operation step (S110), the ventilation purifier is operated in bypass mode or ventilation mode. As described above, in bypass mode, outdoor air can be introduced indoors. Also, in the ventilation mode, indoor air can be discharged outdoors and outdoor air can be introduced indoors.

In the detection step (S120), outdoor temperature, humidity, harmful gases, and odor are detected. The detection step (S120) may be performed using an outdoor air quality meter. While the ventilation purifier is operating, the outdoor air quality meter operates continuously and can measure outdoor air quality in real time.

In the conversion step (S130), when any one of the outdoor temperature and humidity selected exceeds the allowable level, or when harmful gases or bad odors are generated, the ventilation purifier is switched to the air purification mode. The conversion step (S130) may be performed by the management server. For example, in the conversion step (S130), if the outdoor temperature is -15°C or lower or the outdoor humidity is 95% or higher, the ventilation purifier may be converted to the air purifying mode.

At this time, as described above, the management server transmits a mode decision signal to the ventilation purifier depending on the situation, and the ventilation purifier may receive the mode decision signal and operate in a specific mode.

Since each step of the ventilation purifier automatic operation method (S100) described above has been described in detail while explaining the ventilation purifier automatic operation system according to an embodiment of the present invention, detailed description thereof will be omitted. This method of automatic operation of a ventilation purifier (S100) prevents external harmful gases or odors from entering the room, thereby keeping the indoor air comfortable at all times.

A person skilled in the art to which the present invention pertains will understand that the present invention can be implemented in other specific forms without changing its technical idea or essential features. Therefore, the embodiments described above should be understood in all respects as illustrative and not restrictive. The scope of the present invention is indicated by the scope of the claims described below rather than the detailed description above, and all changes or modified forms derived from the meaning and scope of the claims and their equivalent concepts are included in the scope of the present invention. must be interpreted.

1000: Ventilation purifier automatic operation system 100: Ventilation purifier
110: air cleaning unit 111: frame member
111A: first frame part 111B: second frame part
112: multi-stage portion 113: opening and closing member
114: Clean filter assembly 114a: Border member
115: housing member 120: main unit
121: Heat exchange member 122: Bypass path
124: separation prevention member 125: base member
125a: first opening 125b: second opening
125c: third opening 126: receiving portion
127: Joint L1: Indoor ventilation opening
L2: Indoor supply outlet V1: Outdoor outdoor outlet
V2: Outdoor exhaust port C1: First cover member
C2: Second cover member C3: Third cover member
F1: first filter member F2: first filter member
N1: first circulation member N2: second circulation member
D1: first damper member D2: second damper member
D3: Third damper member D4: Fourth damper member
G1: First clean filter G2: Second clean filter
G3: Third clean filter 200: Indoor air quality meter
300: Outdoor air quality meter 310: Temperature sensor
320: Humidity sensor 330: Odor sensor
340: hazardous gas sensor 400: management server

Claims (14)

A ventilation purifier capable of operating in a ventilation mode that exhausts indoor air to the outside and introduces outside air into the room, and an air purification mode that purifies and circulates indoor air;
An indoor air quality meter that is located indoors and measures indoor air quality;
An outdoor air quality meter located outdoors and measuring outdoor air quality; and
a management server that determines an operation mode of the ventilation purifier based on indoor air quality information transmitted from the indoor air quality meter and outdoor air quality information transmitted from the outdoor air quality meter; Including,
The management server is,
A first condition in which the outdoor temperature measured by the outdoor air quality measuring device is less than or equal to the reference temperature value, a second condition in which the outdoor humidity measured by the outdoor air quality measuring device is equal to or greater than the standard humidity value, and a case in which a harmful gas is detected by the outdoor air quality measuring device. When at least one of the third condition and the fourth condition, which is a case where a bad odor is detected by the outdoor air quality measuring device, is satisfied, automatically switching the operation mode of the ventilation purifier to the air purification mode,
The ventilation purifier,
An indoor ventilation port through which indoor air flows in, an indoor supply port through which air is supplied indoors, an outdoor outdoor outlet through which outdoor air flows in, an outdoor exhaust port through which indoor air is discharged to the outside, and an accommodation formed between the indoor supply port and the indoor ventilation port. a main body unit including parts; and
an air purifying unit detachably coupled to the receiving portion of the main unit and filtering indoor air moving to the indoor air supply port through the indoor ventilation port; Includes,
The air purifying unit,
a frame member partially accommodated in the receiving portion;
an opening and closing member installed in a portion of the frame member adjacent to the indoor ventilation opening and controlling an airflow flowing into the frame member;
a cleaning filter assembly installed inside the frame member, detachably coupled to the frame member, and filtering air flowing into the air cleaning unit; and
a housing member coupled to an externally exposed portion of the frame member; Including,
The frame member includes a first frame portion and a second frame portion positioned to be spaced apart from the first frame portion,
In each of the first frame portion and the second frame portion, a multi-stage portion having a multi-stage shape is formed on both the inner and outer sides at a portion where the clean filter assembly is coupled,
A coupling portion having a multi-stage shape is formed in the receiving portion to correspond to the outer side of the multi-stage portion,
The clean filter assembly,
A first clean filter, a second clean filter, and a third clean filter arranged side by side so that one side is in close contact with each other; and
a border member that surrounds the first clean filter, the second clean filter, and the third clean filter, and is formed to have a step at a portion corresponding to a boundary of each of the first clean filter, the second clean filter, and the third clean filter; Including,
The main unit is,
base member;
a total heat exchange member disposed inside the base member and configured to exchange heat between the indoor air and the outdoor air;
a bypass path that communicates the outdoor outdoor appliance and the indoor air supply port, and allows outdoor air supplied from the outdoor outdoor appliance to bypass the total heat exchange member and move to the indoor air supply port;
a first filter member installed inside the base member adjacent to a portion where the outdoor outdoor appliance is located and filtering outdoor air supplied from the outdoor outdoor appliance;
a second filter member installed inside the base member and filtering air flowing into the total heat exchange member through the indoor ventilation hole;
A separation prevention member slidably coupled to a portion of the base member adjacent to the total heat exchange member and positioned to prevent the total heat exchange member from being separated from the base member when moved in a direction closer to the total heat exchange member. ;
a first opening that allows the first filter member to go in and out;
a second opening for allowing the second filter member to go in and out; and
a third opening that allows the heat exchange member to go in and out;
a first cover member detachably coupled to the base member and closing the first opening;
a second cover member detachably coupled to the base member and closing the second opening; and
a third cover member detachably coupled to the base member and closing the third opening; It further includes,
The first clean filter, the second clean filter, and the third clean filter are each located in a one-to-one correspondence with each stage inside the multi-stage unit. According to paragraph 1,
The first condition is that the temperature is -15°C or lower,
The second condition is that the humidity is 95% or more,
The third condition is a state in which harmful gas is detected by the harmful gas sensor,
The fourth condition is a ventilation purifier automatic operation system, characterized in that a bad odor is detected by an odor sensor. delete delete delete According to paragraph 1,
The main unit is,
a first circulation member disposed adjacent to the indoor air supply opening inside the base member;
a second circulation member disposed adjacent to the outdoor exhaust port inside the base member;
a first damper member that controls airflow moving from the outdoor appliance to the bypass path;
a second damper member that controls airflow moving to the indoor air supply opening;
a third damper member that controls airflow moving to the outdoor appliance; and
a fourth damper member controlling airflow moving to the outdoor exhaust port; A ventilation purifier automatic operation system further comprising: delete delete delete delete delete delete delete delete

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