KR20230102828A - Air conditioner and controlling method of thereof - Google Patents

Abstract

The present invention provides an air conditioner and a control method for the air conditioner. An air conditioner according to an embodiment of the present invention includes a fan including an air supply fan supplying air from the outside to the inside to ventilate each room, and an exhaust fan discharging air from the inside to the outside. A diffuser installed in each room to supply or exhaust air flowed by a fan to a plurality of rooms, and can be opened and closed by adjusting the opening rate; A sensor unit installed in each room and detecting air quality; A central control unit connected to the fan and sensor unit and controlling the fan; and a diffuser control unit that is connected to the diffuser, the sensor unit, and the central control unit and controls the diffuser to ventilate each room, wherein the central control unit determines a ventilation room among a plurality of rooms according to the air quality state detected by the sensor unit. and a first determination module for determining the air volume of the fan, wherein the diffuser control unit determines the air volume of each diffuser in the ventilation room in consideration of the air volume of the fan determined by the first determination module according to the air quality state detected by the sensor unit. a second decision module to do; includes Through the configuration of the air conditioner according to an embodiment of the present invention, it is possible not only to perform a ventilation operation only in ventilation rooms requiring ventilation, but also to automatically control ventilation for each room by providing the required air volume for each ventilation room. Thus, the ventilation efficiency can be effectively improved.

Description

Air conditioner and control method of air conditioner {AIR CONDITIONER AND CONTROLLING METHOD OF THEREOF}

The present invention relates to an air conditioner and a method for controlling the air conditioner.

In general, an air conditioner is a device that performs functions such as cooling, heating, dehumidifying, and cleaning to maintain a comfortable environment in an indoor space by improving indoor air quality. In general, an indoor space has a plurality of rooms. It is necessary to perform ventilation for each room with respect to the room.

Particularly, among a plurality of rooms, there may be rooms in which people frequently stay or air quality deteriorates due to the influence of the surrounding environment, requiring more ventilation than other rooms, and it is necessary to perform ventilation for each room.

Patent Document 1 discloses a control method for implementing control of each room by installing an air supply distributor and an exhaust distributor in an indoor ventilation system so that the user can selectively ventilate the air volume desired by the user for each room in the room. It is necessary to further research and develop the technology that automatically controls the ventilation operation of each room according to the environment of the room.

Republic of Korea Patent Publication No. 10-2011-0070123 (2011.06.24)

An object of the present invention is to provide an air conditioner capable of improving ventilation efficiency by enabling automatic control of ventilation in each room according to the state of air quality in each room of an indoor space.

Meanwhile, another object of the present invention is to provide a control method for an air conditioner capable of improving ventilation efficiency by enabling automatic control of ventilation in each room according to the state of air quality in each room of an indoor space.

In order to achieve the above object, according to an embodiment of the present invention, a fan including a supply fan for supplying air from the outside to the inside to ventilate each room, and an exhaust fan for discharging air from the inside to the outside; a diffuser installed in each room to supply or exhaust the air flowed by the fan to a plurality of rooms and capable of opening and closing by adjusting an opening rate; A sensor unit installed in each room and detecting air quality; a central control unit connected to the fan and the sensor unit and controlling the fan; and a diffuser control unit connected to the diffuser, the sensor unit, and the central control unit and controlling the diffuser to ventilate each room, wherein the central control unit among the plurality of rooms according to the air quality state detected by the sensor unit. and a first determination module for determining a ventilation chamber and an air volume of the fan, wherein the diffuser control unit considers the air volume of the fan determined by the first determination module according to the air quality state sensed by the sensor unit. It provides an air conditioner including a second determination module for determining the air volume of each diffuser in the ventilation chamber.

On the other hand, according to another embodiment of the present invention, a fan for flowing air indoors or outdoors; a diffuser installed in each room to supply or exhaust air to the plurality of rooms by the fan; A sensor unit installed in each room and detecting air quality; a central control unit controlling the fan; and a diffuser control unit controlling the diffuser to ventilate each room, wherein the central control unit determines a ventilation room among a plurality of rooms according to an air quality condition of each room and determines an air volume of the fan. First decision step; a second determining step in which the diffuser control unit determines an air volume of the diffuser of each ventilation chamber in consideration of the air volume of the fan determined in the first determining step according to the air quality state of the ventilation chamber; and an adjusting step of adjusting the fan and the diffuser installed in the ventilation chamber in consideration of the determined air volume of the fan and the air volume of the diffuser in each of the ventilation chambers.

An air conditioner and a control method thereof according to an embodiment of the present invention determine a ventilation room among a plurality of rooms according to an air quality state detected by a sensor unit installed in each room, determine the air volume of the fan, and determine the air volume of the fan in each room. By determining the air volume of each diffuser in the ventilation room in consideration of the air volume of the fan determined according to the air quality condition of the air quality, the ventilation operation can be performed only in the ventilation room requiring ventilation, and the required air volume is provided for each ventilation room. It is possible to automatically control the ventilation of each room, so the ventilation efficiency can be effectively improved.

1 is a schematic diagram showing a configuration in which a diffuser control unit is provided in a diffuser in an air conditioner according to an embodiment of the present invention.
2 is a schematic diagram showing a configuration in which a diffuser control unit is provided to a central control unit in an air conditioner according to another embodiment of the present invention.
3 is a schematic diagram showing a configuration in which a diffuser control unit is provided in a room controller in an air conditioner according to another embodiment of the present invention.
4 is a flowchart showing a control method of an air conditioner according to an embodiment of the present invention.
5 is a flowchart showing a control method of an air conditioner according to another embodiment of the present invention.

Hereinafter, it will be described in detail through exemplary drawings of the present invention. Note that in adding reference numerals to components of each drawing, the same components have the same reference numerals as much as possible, even if they are displayed on different drawings. In addition, in describing the present invention, if it is determined that a detailed description of a related known configuration or function may obscure the gist of the present invention, the detailed description will be omitted.

According to an embodiment of the present invention, an air conditioner capable of automatically controlling a ventilation operation of each room according to the environment of each room and a control method thereof are provided.

An air conditioner according to an embodiment of the present invention will be described in detail with reference to FIGS. 1 to 3 below.

1 is a schematic diagram showing a configuration in which a diffuser control unit is provided in a diffuser in an air conditioner according to an embodiment of the present invention, and FIG. 2 is a diffuser control unit provided in a central control unit in an air conditioner according to another embodiment of the present invention. 3 is a schematic diagram showing a configuration in which a diffuser control unit is provided to a room controller in an air conditioner according to another embodiment of the present invention.

Referring to FIGS. 1 to 3 , an indoor space may include a plurality of rooms provided as first to sixth rooms 201 to 206 .

1 to 3, the air conditioner 100 according to an embodiment of the present invention includes a fan 10, a diffuser 20, a sensor unit 30, a central control unit 40 and 40a, and It includes diffuser controllers 50, 50a, and 50b.

Here, for example, the air conditioner 100 may be a ventilation device.

The fan 10 includes an air supply fan 11 for supplying air from the outside to the inside to ventilate each room and an exhaust fan 12 for discharging air from the inside to the outside.

The diffuser 20 is installed in each room to supply or exhaust the air flowed by the fan 10 to the plurality of rooms 201 to 206, and can be opened and closed by adjusting the opening rate.

Specifically, the diffuser 20 includes an air supply diffuser 21 installed in each room to supply air flown by the air supply fan 11 to a plurality of rooms 201 to 206 and capable of opening and closing by adjusting the opening rate. can do.

In addition, the diffuser 20 may include an exhaust diffuser 22 installed in each room to exhaust the air flowed by the exhaust fan 12 to a plurality of rooms 201 to 206 and capable of opening and closing by adjusting the opening rate. can

As an example, in order to perform a ventilation operation in each room 201 to 206, the ventilation operation is performed in consideration of the size of each room 201 to 206, the number of diffusers 20 installed in each room 201 to 206, and the like. The opening rate or air volume of the diffuser 20 may be preset for each room.

The sensor unit 30 is installed in each room and is configured to sense air quality.

The sensor unit 30 includes a first sensor for detecting total volatile organic compounds (TVOC), a second sensor for detecting fine dust (including PM2.5 and PM1.0, etc.), and a third sensor for detecting carbon dioxide (CO ₂ ). May contain sensors.

The central controllers 40 and 40a are connected to the fan 10 and the sensor unit 30 and control the fan 10 including the supply fan 11 and the exhaust fan 12 .

The central controllers 40 and 40a include a first decision module 41. The first determination module 41 is a component that determines a ventilation room among a plurality of rooms 201 to 206 and an air volume of the fan 10 according to the air quality state detected by the sensor unit 30 .

For example, when the sensor unit 30 detects that the air quality in the plurality of rooms 201 to 206 has reached a value that satisfies the ventilation condition, the first determination module 41 of the central control unit 40 or 40a Among the plurality of rooms 201 to 206, the room in which the sensor unit 30 is located, which detects that the air quality condition has reached a value that satisfies the ventilation condition, is determined as a ventilation room (one or more ventilation rooms), and the determined ventilation When there is one room, the air volume of the fan 10 can be determined based on the air quality of the ventilation room, and when there are a plurality of ventilation rooms, the air quality of the ventilation room with the worst air quality can be used to determine the air volume of the fan 10. volume can be determined.

The first determination module 41 may determine the air volume of the fan 10 according to air quality information including total volatile organic compounds, fine dust, and carbon dioxide.

That is, the first determination module 41 determines a room that satisfies the ventilation condition in the air quality information including total volatile organic compounds, fine dust, and carbon dioxide as a ventilation room, and based on the room with the worst air quality among the ventilation rooms, the fan ( 10) can determine the air volume.

Specifically, the sensor unit 30 detects a first sensor for detecting total volatile organic compounds (TVOC), a second sensor for detecting fine dust (including PM2.5 and PM1.0, etc.) and carbon dioxide (CO ₂ ). When the third sensor is included, the sensor unit 30 for each room detects the air chamber state of total volatile organic compounds, fine dust, and carbon dioxide, and detects total volatile organic compounds, fine dust, and carbon dioxide among the plurality of rooms 201 to 206. When it is detected that at least one of the air chamber states of dust and carbon dioxide has reached a value that satisfies the ventilation condition, the first determination module 41 of the central control unit 40 and 40a selects one of the plurality of rooms 201 to 206. The room in which the sensor unit 30, which detects that the air quality has reached a value that satisfies the ventilation condition, is located is determined as a ventilation room (one or a plurality of ventilation rooms), and if the determined ventilation room is one, the air quality of this ventilation room The air volume of the fan 10 may be determined based on , and when there are a plurality of determined ventilation rooms, the air volume of the fan 10 may be determined based on the air quality of the ventilation room having the worst air quality.

The diffuser control units 50, 50a, and 50b are connected to the diffuser 20, the sensor unit 30, and the central control unit 40, 40a, and control the diffuser 20 to ventilate each room.

What needs to be explained here is that in the air conditioner of the present invention, the diffuser control unit 50 is a configuration for controlling the diffuser 20, and can control both the air volume of the supply air diffuser 21 and the exhaust diffuser 22, In addition, it goes without saying that the air volume can be adjusted by selectively selecting one of the air supply diffuser 21 and the exhaust diffuser 22 .

The diffuser control unit 50 may adjust the opening rate of the diffuser 20 by controlling the operation time of a driving means such as a motor driving the diffuser 20 .

The diffuser controller 50 may be provided to any one of the central controllers 40 and 40a, the diffusers 20 installed in each room, and the room controllers 60 and 60b installed in each room.

For example, as shown in FIG. 1, the diffuser controller 50 including the second determination module 51b may be provided in the diffuser 20 installed in each room, or as another example, as shown in FIG. The diffuser control unit 50a including the second determination module 51a may be provided in the control unit 40a, or as another example, as shown in FIG. 3, the second determination module is installed in the room controller 60b installed in each room. A diffuser controller 50b including 51b may be provided.

Here, in order to improve the control accuracy of the diffuser 20, as shown in FIG. 1, the diffuser control unit 50 is provided to the diffuser 20 installed in each room to provide air quality information detected by the sensor unit 30. Accordingly, the operation of the diffuser 20 can be accurately controlled.

In order to help the understanding of the description in detail, the detailed configuration of the air conditioner 100 will be described below as an example of the configuration shown in FIG. 1 .

Referring to FIG. 1 , the diffuser controller 50 includes a second determination module 51 . The second determination module 51 determines the air volume of each diffuser 20 in the ventilation chamber in consideration of the air volume of the fan 10 determined by the first determination module 41 according to the air quality state detected by the sensor unit 30. configuration that determines

For example, when the sensor unit 30 detects that the air quality in the plurality of rooms 201 to 206 has reached a value that satisfies the ventilation condition, the first determination module 41 of the central control unit 40 or 40a Among the plurality of rooms 201 to 206, the room in which the sensor unit 30 is located, which detects that the air quality condition has reached a value that satisfies the ventilation condition, is determined as a ventilation room (one or more ventilation rooms), and the determined ventilation When there is one room, the air volume of the fan 10 can be determined based on the air quality of the ventilation room, and when there are a plurality of ventilation rooms, the air quality of the ventilation room with the worst air quality can be used to determine the air volume of the fan 10. volume can be determined. Therefore, the second determination module 51 of the diffuser control unit 50 considers the air volume of the fan 10 determined by the first determination module 41 and determines the diffuser ( 20) can be determined.

Here, the second determination module 51 may determine the air volume of the diffuser 20 according to air quality information including total volatile organic compounds, fine dust, and carbon dioxide.

Furthermore, the second determination module 51 determines, among the diffusers 20, the number of existing diffusers in the existing ventilation chamber and the first determination module 41, when there is an existing ventilation room in which an existing diffuser in an open state exists. ), the air volume of the diffuser in the ventilation chamber and the air volume of the air diffuser in the ventilating chamber may be determined by considering the air volume of the fan 10 .

Here, the first determination module 41 selectively, if necessary, considers the air volume of the existing diffuser in the existing ventilation room, when there is an existing ventilation room in which the existing diffuser in the open state is present among the diffusers 20. The air volume of the fan 10 may be determined.

For example, the first determination module 41 determines, as a ventilation room, a room that satisfies ventilation conditions in the air quality information including total volatile organic compounds, fine dust, and carbon dioxide, The air volume of the fan 10 may be determined based on the relatively high air volume by comparing the air volume of the air diffuser in the air ventilating chamber.

Furthermore, the second determination module 51 considers the air volume of the fan 10 determined in the number of diffusers and the first determination module 41 to determine the air volume of the diffuser in the ventilation chamber and the air volume of the diffuser in the ventilating chamber. air volume can be determined.

According to the configuration of the air conditioner 100 according to an embodiment of the present invention described above, ventilation rooms among the plurality of rooms 201 to 206 according to the air quality state detected by the sensor unit 30 installed in each room. Ventilation rooms requiring ventilation by determining the air volume of the fan 10 and determining the air volume of the diffuser 20 of each ventilation room in consideration of the air volume of the fan 10 determined according to the air quality condition of each room. Ventilation can be performed only in the room, and ventilation efficiency can be effectively improved by automatically controlling the ventilation of each room by providing the required air volume for each ventilation room.

Meanwhile, a control method of an air conditioner according to an embodiment of the present invention will be described with reference to FIGS. 1 to 5 below.

Here, the air conditioner to which the air conditioner control method is applied includes the configuration of the air conditioner 100 described above.

Here, in order to help the understanding of the description, a method of controlling an air conditioner to which the configuration of the air conditioner 100 shown in FIG. 1 is applied will be described.

The air conditioner 100 includes a fan 10 for flowing air indoors or outdoors; a diffuser 20 installed in each room to supply or exhaust air to or from the plurality of rooms 201 to 206 by the fan 10; A sensor unit 30 installed in each room and detecting air quality; A central controller 40 that controls the fan 10; a diffuser controller 50 that controls the diffuser 20 to ventilate each room;

Here, the configuration of the air conditioner including the fan 10, the diffuser 20, the sensor unit 30, the central control unit 40, and the diffuser control unit 50 will not be repeatedly described.

4 is a flowchart showing a control method of an air conditioner according to an embodiment of the present invention, and FIG. 5 is a flowchart showing a control method of an air conditioner according to another embodiment of the present invention.

First, referring to FIG. 4 , the method for controlling an air conditioner according to an embodiment of the present invention includes a first determining step (S10), a second determining step (S20), and an adjusting step (S30).

In the first determining step (S10), the central control unit 40 determines a ventilation room among the plurality of rooms 201 to 206 according to the air quality condition of each room and determines the air volume of the fan 10.

For example, when the sensor unit 30 detects that the air quality conditions in the plurality of rooms 201 to 206 have reached a value that satisfies the ventilation condition in the first determination step S10, the central control unit 40 determines the plurality of rooms 201 to 206. Among the rooms 201 to 206, the room where the sensor unit 30 is located, which detects that the air quality has reached a value that satisfies the ventilation condition, is determined as a ventilation room (one or more ventilation rooms), and the determined ventilation room is In the case of one ventilation room, the air volume of the fan 10 can be determined based on the air quality of the ventilation room, and if there are a plurality of determined ventilation rooms, the air volume of the fan 10 can be determined based on the air quality of the ventilation room with the worst air quality. can decide

In the first determining step ( S10 ), the air volume of the fan 10 may be determined according to air quality information including total volatile organic compounds, fine dust, and carbon dioxide.

Specifically, in the first determination step (S10), the sensor unit 30 detects the total volatile organic compounds, fine dust, and carbon dioxide air chamber conditions for each room, and determines the total volatile organic compounds among the plurality of rooms 201 to 206. , When it is detected that at least one of the air chamber conditions of fine dust and carbon dioxide has reached a value that satisfies the ventilation condition, the central control unit 40 determines the air quality of the plurality of rooms 201 to 206 as the value that satisfies the ventilation condition. The room where the sensor unit 30 detects the arrival of is determined as a ventilation room (one or a plurality of ventilation rooms), and when the determined ventilation room is one, the fan 10 operates based on the air quality of the ventilation room. The air volume may be determined, and if there are a plurality of determined ventilation rooms, the air volume of the fan 10 may be determined based on the air quality of the ventilation room having the worst air quality.

In the second determining step (S20), the diffuser controller 50 considers the air volume of the fan determined in the first determining step (S10) according to the air quality condition of each room, and the air volume of the diffuser 20 in each ventilation room. is the step to determine

In the second determination step (S20), the air volume of each diffuser 20 in the ventilation chamber is determined in consideration of the air volume of the fan determined in the first determination step (S10) according to the air quality information including total volatile organic compounds, fine dust, and carbon dioxide. can decide

For example, in the second determining step (S20), the air volume of each diffuser 20 in the ventilation chamber may be determined by the following equation.

S={ | 4.5 |× (Diffuser Opening Rate ID) ² + | 38.52 |× (electric diffuser opening rate)+y} × air volume correction factor;

Here, S represents the air volume of each diffuser.

The diffuser open rate ID may be a natural number determined according to the degree of open rate. As a specific example, as the open rate gradually increases, the diffuser open rate ID may be a number that gradually increases from the natural number 1.

y represents the sum of the air volumes between the total diffusers.

The air volume correction coefficient is a coefficient that is applied differently depending on the number of air diffusers in a plurality of rooms and the number of diffusers in a ventilation room. As a specific example, the air volume correction coefficient may be 1 when the diffuser in the front room operates, and the air volume correction coefficient may gradually decrease from 1 as the number of diffusers decreases.

In addition, in the first determination step (S10) and the second determination step (S20), the air quality of each room is measured by the sensor unit 30 installed in each room, and total volatile organic compounds, fine dust and carbon dioxide are measured. It is possible to determine the air quality condition by measuring the air quality information included.

Although the sensor unit 30 is shown as a configuration provided to the room controller 60 in the drawings, it is of course possible to provide the sensor unit 30 to other components such as an air monitor installed in each room.

At this time, the air monitor is a device that measures the air pollution level in the room by interlocking with the air conditioner 100, and measures air quality information including total volatile organic compounds, fine dust, and carbon dioxide in each room. Air quality information in each room is provided to the central control unit 40 and the diffuser control unit 50 so that the central control unit 40 determines the air volume of the fan 10 and the diffuser control unit 50 determines the air volume of the diffuser 20. can provide

The adjusting step (S30) is a step of adjusting the fan 10 and the diffuser 20 installed in the ventilation chamber in consideration of the determined air volume of the fan 10 and the air volume of the diffuser 20 of each ventilation chamber.

That is, in the adjusting step (S30), the air volume of the fan 10 determined in the first determining step (S10) and the diffuser 20 of each ventilation room determined in the second determining step (S20) according to the air quality condition of each room The fan 10 and the diffuser 20 installed in the ventilation chamber may be adjusted in consideration of the air volume of the airflow.

Furthermore, referring to FIG. 5 , the method for controlling an air conditioner according to an embodiment of the present invention includes an initial ventilation room confirmation step of confirming an existing ventilation room in which an open diffuser among diffusers 20 exists. (S50) may be further included.

In the checking step of the ventilation chamber (S50), the air volume and the number of diffusers in the ventilation chamber may be additionally checked.

Here, in FIG. 4, the ventilation room confirmation step (S50) is shown in a form performed before the first determination step (S10), but the present invention is not limited thereto, and as an example, the ventilation room confirmation step in (S50) may be performed in the first decision step (S10).

In the first determination step (S10), after determining the ventilation room among the plurality of rooms (201 to 206) according to the air quality condition of each room (S11), the previously performed ventilation is confirmed in the checking step (S50) of the previously performed ventilation room. The air volume of the fan 10 is determined in consideration of the air volume of the diffuser running in the room (S12).

Furthermore, in the second determination step (S20), the number of diffusers in the ventilation chamber checked in the ventilation chamber confirmation step (S50) and the first determination step (S10) according to the air quality of the ventilation chamber The air volume of each diffuser 20 in the ventilation chamber and the air volume of the air diffuser in the ventilating chamber are determined in consideration of the air volume of the fan 10 determined in the above.

Here, the air volume of each diffuser 20 in the ventilation chamber and the air volume of the diffuser in the air ventilating chamber are S={ | 4.5 |× (Diffuser Opening Rate ID) ² + | It can be determined by the formula of 38.52 |× (opening rate of electric diffuser)+y} × air volume correction coefficient.

Furthermore, in the first determination step (S10), the air volume of the ventilation chamber and the fan 10 may be determined in priority order of total volatile organic compounds, fine dust, and carbon dioxide, and in the second determination step (S20), the total volatility may be determined. The air volume of the diffuser 20 is determined according to the priorities of organic compounds, fine dust, and carbon dioxide.

In addition, in the first determining step ( S10 ), the air volume of the fan 10 is determined as strong wind, weak wind, or light wind according to air quality information including total volatile organic compounds, fine dust, and carbon dioxide.

Meanwhile, the control method of the air conditioner according to an embodiment of the present invention may further include a feedback step (S40) after the adjusting step (S30).

In the feedback step (S40), after the control step (S30), the air volume change state of the fan 10 and the air volume change state of the diffuser 20 in the ventilation room are fed back to the central control unit 40 and the diffuser control unit 50, respectively. It is a step. Through this feedback step (S40), the air quality condition in the ventilation room can be more effectively improved by controlling the air volume of the diffuser 20 in the ventilation room more precisely, and also the air volume of the air diffuser 20 in the air conditioning room can be reduced. can be corrected.

Below, for example, the control process according to the control method of the air conditioner of the present invention will be described in detail.

The air conditioner 100 of the present invention determines air quality by measuring air quality information including total volatile organic compounds, fine dust, and carbon dioxide by means of the sensor unit 30 installed in each room.

As a result of measuring the air quality information of the plurality of rooms 201 to 206, the total volatile organic compound content measured in the first room 201 is normal, the fine dust content is normal, the carbon dioxide content is poor, 2 The total volatile organic compound content measured in room 202 is at a poor level, the fine dust content is at a normal level, and the carbon dioxide content is at a very poor level, and the total volatility measured at the third room 203 to the fifth room 205 The organic compound content, fine dust content, and carbon dioxide content are all good, and the sixth room (206) has a normal total volatile organic compound content, a normal fine dust content, and a poor carbon dioxide content, and the sixth room (206 ) will be described as an example in the case of air ventilation in which the air volume of the diffuser is adjusted to weak wind.

First, in the checking of the previously performed ventilation room (S50), the sixth room 206 in which the previously performed diffuser is present is determined as the previously performed ventilation room.

In the confirming step of the ventilation room (S50), the air volume and the number of air diffusers in the sixth room 206, which is the ventilation room, are additionally checked.

In the first determination step (S10), the first room 201 and the second room 202 among the plurality of rooms 201 to 206 are determined as ventilation rooms according to the air quality condition of each room (S11).

Here, the air volume of the ventilation chamber and the fan 10 may be determined by prioritizing total volatile organic compounds, fine dust, and carbon dioxide. That is, the content of total volatile organic compounds is determined as a priority, and when the content of total volatile organic compounds among rooms 1 to 6 satisfies the ventilation conditions, the ventilation room is directly determined, and the content of total volatile organic compounds meets the ventilation conditions. If not satisfied, it is sequentially determined whether the contents of fine dust and carbon dioxide satisfy the ventilation conditions.

Next, in the first determining step (S10), the air volume of the fan 10 is determined in consideration of the air volume of the air diffuser of the sixth room 206, which is an air ventilation room (S12).

In addition, in the first determining step ( S10 ), the air volume of the fan 10 may be determined as strong wind, weak wind, or light wind according to air quality information including total volatile organic compounds, fine dust, and carbon dioxide.

Specifically, in step S12, the air volume required for the second room 202, which has the worst carbon dioxide content and the worst air quality among the ventilation rooms, is compared with the air volume of the air diffuser in the air ventilating room, and the air volume is relatively high. Based on the required air volume of the second room 202, the air volume of the fan 10 may be determined as strong wind.

In the second determining step (S20), the number of diffusers in the sixth room (206), which is the already performing ventilation chamber, which is checked in the first determining step (S10) according to the air quality state of the ventilation chamber is considered, and The air volume of the diffuser 20 of each of the 201 and the second chamber 202 and the air volume of the air diffuser of the air ventilating chamber are determined.

Here, as an example, the air volume of the diffuser 20 of the second room 202 having the worst air quality is determined to be greater than the air volume of the diffuser 20 of the first room 201, and the sixth room 206, which is a ventilation room, is already performing. ) can be determined to substantially maintain the air volume of the diffuser. Specifically, the air volume of the diffuser 20 of the second room 202 is determined as a strong wind, the air volume of the diffuser 20 of the first room 201 is adjusted to a weak wind, and the air volume of the sixth room 206, which is a ventilation room, is controlled. The air volume of the performing diffuser may be determined to be maintained at a generally weak air level.

Next, in the adjusting step (S30), the air volume of the fan 10 determined in the first determining step (S10) and the air volume of the diffuser in the sixth room, which is the ventilating chamber, determined in the second determining step (S20), and The fan 10 is adjusted to strong wind considering the air volume of the diffuser 20 of each of the first room 201 and the second room 202, which are ventilation rooms, and the air volume of the diffuser in the sixth room and the first room ( The air volume of the diffuser 20 of 201 may be adjusted to weak air, and the air volume of the diffuser 20 of the second chamber 202 may be adjusted.

According to the air conditioner and the control method of the air conditioner according to an embodiment of the present invention described above, a ventilation room among a plurality of rooms is determined according to the air quality state detected by the sensor unit installed in each room, and the fan By determining the air volume and determining the air volume of each diffuser in the ventilation room in consideration of the air volume of the fan determined according to the air quality condition of each room, ventilation can be performed only in the ventilation room requiring ventilation, and ventilation can be performed in each ventilation room. By providing the necessary air volume for each room, it is possible to automatically control ventilation for each room, effectively improving ventilation efficiency.

As described above, although the present invention has been described by the limited embodiments and drawings, the present invention is not limited thereto, and the technical spirit of the present invention and the following by those skilled in the art to which the present invention belongs Of course, various modifications and variations are possible within the equivalent scope of the claims to be described.

10 fan 11 supply fan
12 Exhaust fan 20 Diffuser
21 Supply air diffuser 22 Exhaust diffuser
30 sensor unit 40,40a central control unit
41 first determination module 50,50a,50b diffuser controller
51,51a,51b Second decision module 60,60b Room control
100 Air handling unit 201 Room 1
202 Room 2 203 Room 3
204 Room 4 205 Room 5
206 Room 6 S10 First decision step
S20 Second Determination Step S30 Adjustment Step
S40 Feedback Step S50 Ventilation Room Confirmation Step

Claims (10)

A fan including a supply fan supplying air from the outside to the inside to ventilate each room, and an exhaust fan discharging air from the inside to the outside;
a diffuser installed in each room to supply or exhaust the air flowed by the fan to a plurality of rooms and capable of opening and closing by adjusting an opening rate;
A sensor unit installed in each room and detecting air quality;
a central control unit connected to the fan and the sensor unit and controlling the fan; and
A diffuser control unit connected to the diffuser, the sensor unit, and the central control unit and controlling the diffuser to ventilate each room;
The central control unit includes a first determination module for determining a ventilation room among a plurality of rooms and determining an air volume of the fan according to the air quality state detected by the sensor unit;
The diffuser control unit may include a second determination module for determining an air volume of the diffuser of each ventilation chamber in consideration of the air volume of the fan determined by the first determination module according to the air quality state detected by the sensor unit; Including, air conditioner. According to claim 1,
The second determination module checks the number of diffusers in an open state among the diffusers and the ventilation chambers in which the diffusers are present, and determines the air volume of the diffuser in the ventilation chamber in consideration of the number of diffusers in the ventilation chamber. An air conditioner for determining the air volume of the air diffuser of the air ventilating chamber. According to claim 1 or 2,
The diffuser control unit is provided in any one of the central control unit, a diffuser installed in each room, and a room controller installed in each room. According to claim 1 or 2,
The sensor unit includes a first sensor for detecting total volatile organic compounds, a second sensor for detecting fine dust, and a third sensor for detecting carbon dioxide,
Wherein the first determination module and the second determination module determine the air volume of the fan and the air volume of the diffuser according to the air quality information including the total volatile organic compounds, fine dust and carbon dioxide, the air conditioner. a fan that moves air indoors or outdoors; a diffuser installed in each room to supply or exhaust air to the plurality of rooms by the fan; A sensor unit installed in each room and detecting air quality; a central control unit controlling the fan; And a diffuser control unit for controlling the diffuser to perform ventilation of each room; as an air conditioner including,
a first determination step in which the central control unit determines a ventilation room among a plurality of rooms according to the air quality condition of each room and determines an air volume of the fan;
a second determining step in which the diffuser control unit determines an air volume of the diffuser of each ventilation chamber in consideration of the air volume of the fan determined in the first determining step according to the air quality state of the ventilation chamber; and
Controlling the fan and the diffuser installed in the ventilation chamber in consideration of the determined air volume of the fan and the air volume of the diffuser in each of the ventilation chamber; According to claim 5,
Including an already performing ventilation room confirmation step of confirming an existing ventilation room in which an existing diffuser in an open state among the diffusers exists,
In the first determining step, a ventilation room among a plurality of rooms is determined according to the air quality condition of each room, and the air flow rate of the fan is determined in consideration of the air flow rate of the air diffuser of the air conditioning room. method. According to claim 6,
In the second determining step, the air volume of each diffuser in the ventilation chamber and the air volume of the diffuser in the ventilating chamber are considered in consideration of the number of diffusers in the ventilating chamber and the air volume of the fan determined in the first determining step. A control method of an air conditioner that determines the air volume of the air conditioner. According to any one of claims 5 to 7,
In the first determining step and the second determining step, the air volume of the fan and the air volume of the diffuser are determined according to air quality information including total volatile organic compounds, fine dust, and carbon dioxide. According to claim 8,
In the first determining step, the air volume of the ventilation chamber and the fan is determined in priority order of the total volatile organic compounds, fine dust, and carbon dioxide;
In the second determining step, the air volume of the diffuser is determined in priority of the total volatile organic compounds, fine dust, and carbon dioxide. According to claim 5,
After the adjusting step, the control method of the air conditioner further comprises a feedback step of feeding back the air volume change state of the fan and the air volume change state of the diffuser of the ventilation chamber to the central control unit and the diffuser control unit, respectively.

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