KR102274942B1 - Air circulation system with toilet and bathroom exhaust - Google Patents

Abstract

According to the present invention, an air circulation system using toilet and bathroom exhaust comprises an inner duct inside a ventilation unit to allow indoor air with high temperature and high humidity exhausted from a toilet and a bathroom during an indoor humidification mode to bypass to the inner duct and then to pass through a total heat exchanger. Accordingly, the total heat exchanger can be dried by using heat of the indoor air to remove condensation generated in the total heat exchanger. Moreover, the air passing through the total heat exchanger can circulate to an indoor space to humidify the dried indoor space in winter.

Description

Air circulation system with toilet and bathroom exhaust

The present invention relates to an air circulation system using a toilet and bathroom exhaust, and improves the durability of the total heat exchanger by removing dew condensation generated in the total heat exchanger by using the heat of indoor air from the toilet and bathroom, and passes the total heat exchanger It relates to an air circulation system using a toilet and bathroom exhaust that can humidify a room by circulating one air into the room.

In general, an air circulation system installed in a building is a ventilation system that improves indoor air quality by exchanging indoor air with outdoor air.

The air circulation system may include a heat exchanger for exchanging heat between indoor air discharged from the room and outdoor air introduced from the outdoors, so that outdoor air can be warmed or cooled by the heat of indoor air by the heat exchanger, so that heat energy loss can be minimized have. In addition, a filter may be provided inside the heat exchanger to purify the outside air by the filter and then supply it to the room.

However, in the conventional air circulation system, a plurality of rooms (Room) are connected by a single duct, there is a problem that the ventilation control for each room is impossible.

Korean Patent No. 10-0851052

SUMMARY OF THE INVENTION It is an object of the present invention to provide an air circulation system using a toilet and bathroom exhaust that can improve the durability of a total heat exchanger.

The air circulation system using the toilet and bathroom exhaust according to the present invention is an air circulation system for a room that is formed as a single room or is formed by dividing a plurality of rooms except for the toilet and bathroom, and includes an outdoor air inlet and an indoor air supply port. , a ventilation unit provided with an indoor exhaust port and an outdoor exhaust port, and provided with an air supply fan and an exhaust fan, for ventilating indoor air; One end is connected to the indoor air supply port of the ventilation unit, and the other end is connected to a plurality of the single chamber or to a plurality of the plurality of chambers, respectively, to distribute the air from the ventilation unit to the connected chamber and supply air a multi-branch unit; One side is connected to the indoor exhaust port of the ventilation unit, and the other side is connected to an exhaust room including at least one of a toilet and a bathroom in the room, so that, when the exhaust fan is operated, the indoor air of the plurality of rooms flows into the exhaust room an exhaust unit guiding to be exhausted through the ventilation unit after being introduced into the exhaust chamber through an opening formed in; A control unit for controlling the operation of the ventilation unit according to an operation mode including a ventilation mode in which outdoor air is introduced to exchange heat between outdoor air and indoor air, and an indoor humidification mode in which the indoor air is humidified by circulating indoor air without introducing outdoor air. The ventilation unit may include a housing in which the indoor air supply port and the indoor exhaust port are formed to be spaced apart from each other by a predetermined distance on the front surface, and the outdoor air inlet and the outdoor exhaust port are formed to be spaced apart from each other by a predetermined distance on the rear surface; a total heat exchanger disposed at an angle to exchange heat between outdoor air and indoor air; and an indoor air supply space provided between the front surface of the housing and the total heat exchanger to communicate the front space of the housing with the indoor air supply port; and the indoor air supply space. a first partition wall dividing the indoor exhaust space into which the indoor air discharged from is introduced, and an outdoor air introduction space provided between the rear surface of the housing and the total heat exchanger to communicate the rear space of the housing with the outdoor air inlet; a second partition wall partitioning an outdoor exhaust space communicating with the outdoor exhaust port, and a second partition provided between the left side of the housing and the total heat exchanger to partition the left space of the housing into the indoor exhaust space and the outdoor air introduction space a third partition wall, a fourth partition wall provided between the right side of the housing and the total heat exchanger to divide the right space of the housing into the indoor exhaust space and the outdoor exhaust space; An inner duct formed to guide indoor air introduced through the exhaust port into one of the outdoor air introduction space and the outdoor exhaust space, and an outdoor air introduction duct formed to connect the outdoor air introduction port and the outdoor air introduction space, wherein the inner duct includes , a first inner barrier rib vertically connected to the first barrier rib in the indoor exhaust space and disposed parallel to the front surface of the housing to form a first bypass flow path between the front surface of the housing and the first barrier rib; It is connected perpendicularly to the end of the inner partition wall and is disposed parallel to the left side of the housing, and is disposed between the left side of the housing and the left side of the housing. a second inner barrier rib forming a second bypass passage passing through the indoor exhaust space and the outdoor air introduction space, and an end of the second inner barrier rib and the third barrier rib are arranged in parallel to the rear surface of the housing, a third inner barrier rib forming a third bypass flow path between the rear surface of the housing, and ventilation for guiding indoor air introduced through the indoor exhaust port to the indoor exhaust space a damper for ventilation mode installed in the opening hole for ventilation mode and opening the opening hole for ventilation mode in the ventilation mode, and a damper for ventilation mode formed in the second inner bulkhead and introduced into the inner duct An opening hole for indoor humidification mode for guiding indoor air to the outdoor air introduction space, and a damper for indoor humidification mode installed in the opening hole for indoor humidification mode to open the opening hole for indoor humidification mode in the indoor humidification mode Including, wherein, when the execution time of the ventilation mode elapses a preset maximum ventilation time, the ventilation mode is switched to the indoor humidification mode, and in the indoor humidification mode, the supply fan operates, The exhaust fan is stopped, the damper for the ventilation mode is controlled to block the opening hole for the ventilation mode, and the damper for the indoor humidification mode is controlled to open the opening hole for the indoor humidification mode to open the indoor exhaust port. The indoor air introduced into the ventilation unit through the ventilation unit sequentially passes through the first and second bypass passages of the inner duct, and then flows into the outdoor air introduction space through the opening hole for the indoor humidification mode, and from the outdoor air introduction space After passing through the total heat exchanger in the direction toward the indoor air supply space, it is supplied into the room through the indoor air supply space and the indoor air supply port.

An air circulation system using a toilet and bathroom exhaust according to another aspect of the present invention is an air circulation system for a room in which a single room is formed or a plurality of rooms are partitioned except for a toilet and a bathroom, and includes an outdoor air inlet; a ventilation unit having an indoor air supply port, an indoor exhaust port, and an outdoor exhaust port, the air supply fan and the exhaust fan being provided to ventilate indoor air; One end is connected to the indoor air supply port of the ventilation unit, and the other end is connected to a plurality of the single chamber or to a plurality of the plurality of chambers, respectively, to distribute the air from the ventilation unit to the connected chamber and supply air a multi-branch unit; One end is connected to the indoor exhaust port of the ventilation unit, and the other end is connected to a plurality of exhaust rooms including at least one of a toilet and a bathroom in the room, respectively, so that when the exhaust fan operates, the indoor air of the plurality of rooms an exhaust multi-branch unit for guiding the exhaust gas to be exhausted from the plurality of exhaust chambers to the ventilation unit after being introduced into the plurality of exhaust chambers through openings respectively formed in the plurality of exhaust chambers; A control unit for controlling the operation of the ventilation unit according to an operation mode including a ventilation mode in which outdoor air is introduced to exchange heat between outdoor air and indoor air, and an indoor humidification mode in which the indoor air is humidified by circulating indoor air without introducing outdoor air. The ventilation unit may include a housing in which the indoor air supply port and the indoor exhaust port are formed to be spaced apart from each other by a predetermined distance on the front surface, and the outdoor air inlet and the outdoor exhaust port are formed to be spaced apart from each other by a predetermined distance on the rear surface; a total heat exchanger disposed at an angle to exchange heat between outdoor air and indoor air; and an indoor air supply space provided between the front surface of the housing and the total heat exchanger to communicate the front space of the housing with the indoor air supply port; and the indoor air supply space. a first partition wall dividing the indoor exhaust space into which the indoor air discharged from is introduced, and an outdoor air introduction space provided between the rear surface of the housing and the total heat exchanger to communicate the rear space of the housing with the outdoor air inlet; a second partition wall partitioning an outdoor exhaust space communicating with the outdoor exhaust port, and a second partition provided between the left side of the housing and the total heat exchanger to partition the left space of the housing into the indoor exhaust space and the outdoor air introduction space a third partition wall, a fourth partition wall provided between the right side of the housing and the total heat exchanger to divide the right space of the housing into the indoor exhaust space and the outdoor exhaust space; An inner duct formed to guide indoor air introduced through the exhaust port into one of the outdoor air introduction space and the outdoor exhaust space, and an outdoor air introduction duct formed to connect the outdoor air introduction port and the outdoor air introduction space, wherein the inner duct includes , a first inner barrier rib vertically connected to the first barrier rib in the indoor exhaust space and disposed parallel to the front surface of the housing to form a first bypass flow path between the front surface of the housing and the first barrier rib; It is connected perpendicularly to the end of the inner partition wall and is disposed parallel to the left side of the housing, and is disposed between the left side of the housing and the left side of the housing. a second inner barrier rib forming a second bypass passage passing through the indoor exhaust space and the outdoor air introduction space, and an end of the second inner barrier rib and the third barrier rib are arranged in parallel to the rear surface of the housing, a third inner barrier rib forming a third bypass flow path between the rear surface of the housing, and ventilation for guiding indoor air introduced through the indoor exhaust port to the indoor exhaust space a damper for ventilation mode installed in the opening hole for ventilation mode and opening the opening hole for ventilation mode in the ventilation mode, and a damper for ventilation mode formed in the second inner bulkhead and introduced into the inner duct An opening hole for indoor humidification mode for guiding indoor air to the outdoor air introduction space, and a damper for indoor humidification mode installed in the opening hole for indoor humidification mode to open the opening hole for indoor humidification mode in the indoor humidification mode Including, wherein, when the execution time of the ventilation mode elapses a preset maximum ventilation time, the ventilation mode is switched to the indoor humidification mode, and in the indoor humidification mode, the supply fan operates, The exhaust fan is stopped, the damper for the ventilation mode is controlled to block the opening hole for the ventilation mode, and the damper for the indoor humidification mode is controlled to open the opening hole for the indoor humidification mode to open the indoor exhaust port. The indoor air introduced into the ventilation unit through the ventilation unit sequentially passes through the first and second bypass passages of the inner duct, and then flows into the outdoor air introduction space through the opening hole for the indoor humidification mode, and from the outdoor air introduction space After passing through the total heat exchanger in the direction toward the indoor air supply space, it is supplied into the room through the indoor air supply space and the indoor air supply port.

An air circulation system using a toilet and bathroom exhaust according to another aspect of the present invention is an air circulation system for a room in which a single room is formed or a plurality of rooms are partitioned except for a toilet and a bathroom, and includes an outdoor air inlet; a ventilation unit having an indoor air supply port, an indoor exhaust port, and an outdoor exhaust port, the air supply fan and the exhaust fan being provided to ventilate indoor air; an air supply unit having one end connected to the indoor air supply port of the ventilation unit and the other end connected to any one of the chambers of the room to supply air from the ventilation unit to the connected chamber; One side is connected to the indoor exhaust port of the ventilation unit, and the other side is connected to an exhaust room including at least one of a toilet and a bathroom in the room, so that, when the exhaust fan is operated, the indoor air of the plurality of rooms flows into the exhaust room an exhaust unit guiding to be exhausted through the ventilation unit after being introduced into the exhaust chamber through an opening formed in; A control unit for controlling the operation of the ventilation unit according to an operation mode including a ventilation mode in which outdoor air is introduced to exchange heat between outdoor air and indoor air, and an indoor humidification mode in which the indoor air is humidified by circulating indoor air without introducing outdoor air. The ventilation unit may include a housing in which the indoor air supply port and the indoor exhaust port are formed to be spaced apart from each other by a predetermined distance on the front surface, and the outdoor air inlet and the outdoor exhaust port are formed to be spaced apart from each other by a predetermined distance on the rear surface; a total heat exchanger disposed at an angle to exchange heat between outdoor air and indoor air; and an indoor air supply space provided between the front surface of the housing and the total heat exchanger to communicate the front space of the housing with the indoor air supply port; and the indoor air supply space. a first partition wall dividing the indoor exhaust space into which the indoor air discharged from is introduced, and an outdoor air introduction space provided between the rear surface of the housing and the total heat exchanger to communicate the rear space of the housing with the outdoor air inlet; a second partition wall partitioning an outdoor exhaust space communicating with the outdoor exhaust port, and a second partition provided between the left side of the housing and the total heat exchanger to partition the left space of the housing into the indoor exhaust space and the outdoor air introduction space a third partition wall, a fourth partition wall provided between the right side of the housing and the total heat exchanger to divide the right space of the housing into the indoor exhaust space and the outdoor exhaust space; An inner duct formed to guide indoor air introduced through the exhaust port into one of the outdoor air introduction space and the outdoor exhaust space, and an outdoor air introduction duct formed to connect the outdoor air introduction port and the outdoor air introduction space, wherein the inner duct includes , a first inner barrier rib vertically connected to the first barrier rib in the indoor exhaust space and disposed parallel to the front surface of the housing to form a first bypass flow path between the front surface of the housing and the first barrier rib; It is connected perpendicularly to the end of the inner partition wall and is disposed parallel to the left side of the housing, and the seal is between the left side of the housing and the left side of the housing. a second inner barrier rib forming a second bypass passage passing through the internal exhaust space and the external air introduction space, and an end of the second inner barrier rib and the third barrier rib are arranged in parallel to the rear surface of the housing, a third inner barrier rib forming a third bypass flow path between the rear surface of the housing, and ventilation for guiding indoor air introduced through the indoor exhaust port to the indoor exhaust space a damper for ventilation mode installed in the opening hole for ventilation mode and opening the opening hole for ventilation mode in the ventilation mode, and a damper for ventilation mode formed in the second inner bulkhead and introduced into the inner duct An opening hole for indoor humidification mode for guiding indoor air to the outdoor air introduction space, and a damper for indoor humidification mode installed in the opening hole for indoor humidification mode to open the opening hole for indoor humidification mode in the indoor humidification mode Including, wherein, when the execution time of the ventilation mode elapses a preset maximum ventilation time, the ventilation mode is switched to the indoor humidification mode, and in the indoor humidification mode, the supply fan operates, The exhaust fan is stopped, the damper for the ventilation mode is controlled to block the opening hole for the ventilation mode, and the damper for the indoor humidification mode is controlled to open the opening hole for the indoor humidification mode to open the indoor exhaust port. The indoor air introduced into the ventilation unit through the ventilation unit sequentially passes through the first and second bypass passages of the inner duct, and then flows into the outdoor air introduction space through the opening hole for the indoor humidification mode, and from the outdoor air introduction space After passing through the total heat exchanger in the direction toward the indoor air supply space, it is supplied into the room through the indoor air supply space and the indoor air supply port.

An air circulation system using a toilet and bathroom exhaust according to another aspect of the present invention is an air circulation system for a room in which a single room is formed or a plurality of rooms are partitioned except for a toilet and a bathroom, and includes an outdoor air inlet; a ventilation unit having an indoor air supply port, an indoor exhaust port, and an outdoor exhaust port, the air supply fan and the exhaust fan being provided to ventilate indoor air; an air supply unit having one end connected to the indoor air supply port of the ventilation unit and the other end connected to any one of the chambers of the room to supply air from the ventilation unit to the connected chamber; One end is connected to the indoor exhaust port of the ventilation unit, and the other end is connected to a plurality of exhaust rooms including at least one of a toilet and a bathroom in the room, respectively, so that when the exhaust fan operates, the indoor air of the plurality of rooms an exhaust multi-branch unit guiding the exhaust gas to be exhausted from the plurality of exhaust chambers to the ventilation unit after being introduced into the plurality of exhaust chambers through openings respectively formed in the plurality of exhaust chambers; A control unit for controlling the operation of the ventilation unit according to an operation mode including a ventilation mode in which outdoor air is introduced to exchange heat between outdoor air and indoor air, and an indoor humidification mode in which the indoor air is humidified by circulating indoor air without introducing outdoor air. The ventilation unit may include a housing in which the indoor air supply port and the indoor exhaust port are formed to be spaced apart from each other by a predetermined distance on the front surface, and the outdoor air inlet and the outdoor exhaust port are formed to be spaced apart from each other by a predetermined distance on the rear surface; a total heat exchanger disposed at an angle to exchange heat between outdoor air and indoor air; and an indoor air supply space provided between the front surface of the housing and the total heat exchanger to communicate the front space of the housing with the indoor air supply port; and the indoor air supply space. a first partition wall dividing the indoor exhaust space into which the indoor air discharged from is introduced, and an outdoor air introduction space provided between the rear surface of the housing and the total heat exchanger to communicate the rear space of the housing with the outdoor air inlet; a second partition wall partitioning an outdoor exhaust space communicating with the outdoor exhaust port, and a second partition provided between the left side of the housing and the total heat exchanger to partition the left space of the housing into the indoor exhaust space and the outdoor air introduction space a third partition wall, a fourth partition wall provided between the right side of the housing and the total heat exchanger to divide the right space of the housing into the indoor exhaust space and the outdoor exhaust space; An inner duct formed to guide indoor air introduced through the exhaust port into one of the outdoor air introduction space and the outdoor exhaust space, and an outdoor air introduction duct formed to connect the outdoor air introduction port and the outdoor air introduction space, wherein the inner duct includes , a first inner barrier rib vertically connected to the first barrier rib in the indoor exhaust space and disposed parallel to the front surface of the housing to form a first bypass flow path between the front surface of the housing and the first barrier rib; It is connected perpendicularly to the end of the inner partition wall and disposed parallel to the left side of the housing, so that the seal is disposed between the left side of the housing and the left side of the housing. a second inner barrier rib forming a second bypass passage passing through the internal exhaust space and the external air introduction space, and an end of the second inner barrier rib and the third barrier rib are arranged in parallel to the rear surface of the housing, a third inner barrier rib forming a third bypass flow path between the rear surface of the housing, and ventilation for guiding indoor air introduced through the indoor exhaust port to the indoor exhaust space a damper for ventilation mode installed in the opening hole for ventilation mode and opening the opening hole for ventilation mode in the ventilation mode, and a damper for ventilation mode formed in the second inner bulkhead and introduced into the inner duct An opening hole for indoor humidification mode for guiding indoor air to the outdoor air introduction space, and a damper for indoor humidification mode installed in the opening hole for indoor humidification mode to open the opening hole for indoor humidification mode in the indoor humidification mode Including, wherein, when the execution time of the ventilation mode elapses a preset maximum ventilation time, the ventilation mode is switched to the indoor humidification mode, and in the indoor humidification mode, the supply fan operates, The exhaust fan is stopped, the damper for the ventilation mode is controlled to block the opening hole for the ventilation mode, and the damper for the indoor humidification mode is controlled to open the opening hole for the indoor humidification mode to open the indoor exhaust port. The indoor air introduced into the ventilation unit through the ventilation unit sequentially passes through the first and second bypass passages of the inner duct, and then flows into the outdoor air introduction space through the opening hole for the indoor humidification mode, and from the outdoor air introduction space After passing through the total heat exchanger in the direction toward the indoor air supply space, it is supplied into the room through the indoor air supply space and the indoor air supply port.

In the ventilation mode, the control unit operates both the supply fan and the exhaust fan, controls the damper for ventilation mode to open the opening hole for the ventilation mode, and the damper for indoor humidification mode allows the indoor humidification Control to block the opening hole for mode, so that indoor air introduced into the ventilation unit through the indoor exhaust port flows into the indoor exhaust space through the ventilation mode opening hole, and from the indoor exhaust space to the outdoor exhaust space After passing through the total heat exchanger in a direction toward

The ventilation unit further includes a filter module including a HEPA filter and a pre-filter provided on the side facing the outside air introduction space in the total heat exchanger.

The total heat exchanger, at least one of the indoor exhaust port and the indoor air supply port is provided with a sterilizing means for sterilizing the air passing through the ventilation unit further includes.

The sterilization means includes a sterilization lamp provided on at least one of a surface facing the outdoor air introduction space and a surface facing the indoor air supply space of the total heat exchanger.

The sterilization means includes a sterilization lamp detachably provided in at least one of the indoor exhaust port and the indoor air supply port.

It further includes a sterilizing means for sterilizing the air passing through the total heat exchanger by coating the surface of the total heat exchanger with a sterilizing material.

Further comprising an exhaust room use detection unit receiving an input of whether the exhaust room is used, wherein the control unit determines that the exhaust room is in use from information input from the exhaust room use detection unit in a state where the operation of the ventilation unit is stopped When this occurs, the air supply fan is stopped and the exhaust fan is operated so that the air in the exhaust room is exhausted to the outside through the ventilation unit.

When it is determined that the use of the exhaust chamber is finished, the controller stops the operation of the exhaust fan after a preset time has elapsed from the time when the use of the exhaust chamber is terminated.

An air circulation system using a toilet and bathroom exhaust according to another aspect of the present invention is an air circulation system for a room in which a single room is formed or a plurality of rooms are partitioned except for a toilet and a bathroom, and an outdoor air inlet is provided. , a ventilation unit having an indoor air inlet, an indoor exhaust and an outdoor exhaust, the air supply fan and the exhaust fan being provided to ventilate indoor air; an air supply unit having one end connected to the indoor air supply port of the ventilation unit and the other end connected to any one of the chambers of the room to supply air from the ventilation unit to the connected chamber; One side is connected to the indoor exhaust port of the ventilation unit, and the other side is connected to an exhaust room including at least one of a toilet and a bathroom in the room, so that, when the exhaust fan is operated, the indoor air of the plurality of rooms flows into the exhaust room an exhaust unit guiding to be exhausted through the ventilation unit after being introduced into the exhaust chamber through an opening formed in; A control unit for controlling the operation of the ventilation unit according to an operation mode including a ventilation mode in which outdoor air is introduced to exchange heat between outdoor air and indoor air, and an indoor humidification mode in which the indoor air is humidified by circulating indoor air without introducing outdoor air. The ventilation unit may include a housing in which the indoor air supply port and the indoor exhaust port are formed to be spaced apart from each other by a predetermined distance on the front surface, and the outdoor air inlet and the outdoor exhaust port are formed to be spaced apart from each other by a predetermined distance on the rear surface; a total heat exchanger disposed at an angle to exchange heat between outdoor air and indoor air; and an indoor air supply space provided between the front surface of the housing and the total heat exchanger to communicate the front space of the housing with the indoor air supply port; and the indoor air supply space. a first partition wall dividing the indoor exhaust space into which the indoor air discharged from is introduced, and an outdoor air introduction space provided between the rear surface of the housing and the total heat exchanger to communicate the rear space of the housing with the outdoor air inlet; a second partition wall partitioning an outdoor exhaust space communicating with the outdoor exhaust port, and a second partition provided between the left side of the housing and the total heat exchanger to partition the left space of the housing into the indoor exhaust space and the outdoor air introduction space a third partition wall, a fourth partition wall provided between the right side of the housing and the total heat exchanger to divide the right space of the housing into the indoor exhaust space and the outdoor exhaust space; An inner duct formed to guide indoor air introduced through the exhaust port into one of the outdoor air introduction space and the outdoor exhaust space, and an outdoor air introduction duct formed to connect the outdoor air introduction port and the outdoor air introduction space, wherein the inner duct includes , a first inner barrier rib vertically connected to the first barrier rib in the indoor exhaust space and disposed parallel to the front surface of the housing to form a first bypass flow path between the front surface of the housing and the first barrier rib; It is connected perpendicularly to the end of the inner partition wall and is disposed parallel to the left side of the housing, and the seal is between the left side of the housing and the left side of the housing. a second inner barrier rib forming a second bypass passage passing through the internal exhaust space and the external air introduction space, and an end of the second inner barrier rib and the third barrier rib are arranged in parallel to the rear surface of the housing, a third inner barrier rib forming a third bypass flow path between the rear surface of the housing, and ventilation for guiding indoor air introduced through the indoor exhaust port to the indoor exhaust space a damper for ventilation mode installed in the opening hole for ventilation mode and opening the opening hole for ventilation mode in the ventilation mode, and a damper for ventilation mode formed in the second inner bulkhead and introduced into the inner duct An opening hole for indoor humidification mode for guiding indoor air into the outdoor air introduction space, and a damper for indoor humidification mode installed in the opening hole for indoor humidification mode to open the opening hole for indoor humidification mode in the indoor humidification mode The ventilation unit further includes a sterilization means for sterilizing the air passing through the ventilation unit, wherein the sterilization means includes a first total heat exchanger sterilization lamp installed on a surface facing the outside air introduction space in the total heat exchanger. and at least one of a second total heat exchanger sterilization lamp installed in the indoor air supply space in the total heat exchanger, an indoor air inlet sterilization lamp installed in the indoor air supply port, and an indoor exhaust sterilizing lamp installed in the indoor exhaust port. and a sterilization coating unit coated with a sterilizing material on the surface of the total heat exchanger to sterilize the air passing through the total heat exchanger, wherein the control unit, when the execution time of the ventilation mode passes a preset maximum ventilation time, the The ventilation mode is switched to the indoor humidification mode, and when the indoor humidification mode is performed, the supply fan is operated, the exhaust fan is stopped, and the damper for the ventilation mode is controlled to block the opening hole for the ventilation mode, The damper for the indoor humidification mode is controlled to open the opening hole for the indoor humidification mode, so that indoor air introduced into the ventilation unit through the indoor exhaust port passes through the first and second bypass passages of the inner duct in turn. After passing through to the indoor humidification mode, it flows into the outdoor air introduction space through the opening hole for the indoor humidification mode, and after passing through the total heat exchanger in a direction from the outdoor air introduction space toward the indoor air supply space, the indoor air supply space and the indoor air supply port to be supplied indoors.

In the ventilation mode, the control unit operates both the supply fan and the exhaust fan, controls the damper for ventilation mode to open the opening hole for the ventilation mode, and the damper for indoor humidification mode allows the indoor humidification Control to block the opening hole for mode, so that indoor air introduced into the ventilation unit through the indoor exhaust port flows into the indoor exhaust space through the ventilation mode opening hole, and from the indoor exhaust space to the outdoor exhaust space After passing through the total heat exchanger in a direction toward

The ventilation unit further includes a filter module including a HEPA filter and a pre-filter provided on the side facing the outside air introduction space in the total heat exchanger.

Further comprising an exhaust room use detection unit receiving an input of whether the exhaust room is used, wherein the control unit determines that the exhaust room is in use from information input from the exhaust room use detection unit in a state where the operation of the ventilation unit is stopped When this occurs, the air supply fan is stopped and the exhaust fan is operated so that the air in the exhaust room is exhausted to the outside through the ventilation unit.

When it is determined that the use of the exhaust chamber is finished, the controller stops the operation of the exhaust fan after a preset time has elapsed from the time when the use of the exhaust chamber is terminated.

In the air circulation system using the toilet and bathroom exhaust according to the present invention, an inner duct is provided inside the ventilation unit, so that the high temperature and high humidity indoor air exhausted from the toilet and bathroom in the indoor humidification mode is bypassed to the inner duct and then heats up By being configured to pass through the exchanger, it is possible to dry the total heat exchanger using the heat of the indoor air to remove the dew condensation generated in the total heat exchanger, and to circulate the air that has passed through the total heat exchanger into the room to provide a dry indoor room in winter. There are advantages to humidification.

In addition, since the total heat exchanger is provided with a sterilization module as well as a filter module, it is possible to sterilize and purify high-temperature, high-humidity indoor air, thereby supplying clean air to the room.

In addition, by controlling the exhaust unit to operate when the exhaust room is used even while ventilation is not performed, there is an advantage that the exhaust room, such as a toilet or a bathroom, can be maintained in a more comfortable state.

In addition, since there is no need to install a separate exhaust fan in the toilet or bathroom, the cost can be reduced.

1 is a diagram schematically showing the configuration of an air circulation system using a toilet and bathroom exhaust according to a first embodiment of the present invention.
2 is a view showing an operating state of the air circulation system in the indoor humidification mode according to the first embodiment of the present invention.
3 is a view showing an operating state of the air circulation system in the outdoor exhaust mode according to the first embodiment of the present invention.
Figure 4 is a perspective view showing a ventilation unit according to the first embodiment of the present invention.
5 is a view showing the operating state of the ventilation unit in the ventilation mode of the air circulation system according to the first embodiment of the present invention.
6 is a view showing the operating state of the ventilation unit in the indoor humidification mode of the air circulation system according to the first embodiment of the present invention.
7 is a view showing the operating state of the ventilation unit in the outdoor exhaust mode of the air circulation system according to the first embodiment of the present invention.
8 is a block diagram showing the control configuration of the air circulation system according to the first embodiment of the present invention.
9 is a view showing an operating state in the ventilation mode of the air circulation system according to the second embodiment of the present invention.
10 is a view showing an operating state of the air circulation system in the indoor humidification mode according to the second embodiment of the present invention.
11 is a view showing an operating state of the air circulation system in the outdoor exhaust mode according to the second embodiment of the present invention.
12 is a view showing an operating state of the air circulation system in the indoor humidification mode according to the third embodiment of the present invention.
13 is a view showing an operating state of the air circulation system in the outdoor exhaust mode according to the third embodiment of the present invention.
14 is a view showing an operating state of the air circulation system in the indoor humidification mode according to the fourth embodiment of the present invention.
15 is a view showing an operating state of the air circulation system in the outdoor exhaust mode according to the fourth embodiment of the present invention.

Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

The air circulation system according to an embodiment of the present invention relates to an air circulation system for a room formed as a single room or a room formed by dividing a plurality of rooms except for a toilet and a bathroom.

1 is a diagram schematically showing the configuration of an air circulation system using a toilet and bathroom exhaust according to a first embodiment of the present invention. 2 is a view showing an operating state of the air circulation system in the indoor humidification mode according to the first embodiment of the present invention. 3 is a view showing an operating state of the air circulation system in the outdoor exhaust mode according to the first embodiment of the present invention. Figure 4 is a perspective view showing a ventilation unit according to the first embodiment of the present invention.

1 to 4, the air circulation system according to the first embodiment of the present invention is a system for ventilating the air in the room R including a plurality of rooms R1 to R4, a bar, a toilet and a bathroom Exhaust is made in one exhaust chamber R5 including at least one of the exhaust chambers, and only supply is made in one air supply chamber R4 of the remaining first to fourth rooms R1 to R4 except for the exhaust chamber. it is a system

In the first embodiment of the present invention, the air supply chamber (R4) is one of the plurality of chambers (R1 ~ R4), the exhaust chamber (R5) is also described as an example made of one.

In this embodiment, the room is divided into a plurality of rooms R1 to R4, and the air supply unit 600 to be described later is described as a single air supply unit connected to any one of the plurality of rooms, but is not limited thereto. It is of course also possible that the room is composed of a single room without the air supply unit 600 being connected to the single room.

In addition, although the exhaust room R5 has been described as including at least one of a toilet and a bathroom, it is not limited thereto and may be set to a place where a large amount of moisture or odor is generated, such as a laundry room.

The air circulation system includes a ventilation unit 10 , an air supply unit 600 , an exhaust unit 200 , and a control unit 400 .

The ventilation unit 10 is a device for ventilating the indoor air by introducing outside air to supply air to the room, sucking in the indoor air and exhausting it to the outside.

The ventilation unit 10 includes a housing 11, a total heat exchanger 20, a first bulkhead 31, a second bulkhead 32, a third bulkhead 33, a fourth bulkhead 34, and an inner duct ( 40), the fresh air introduction duct 50, the filter module 60, sterilization means and a plurality of dampers.

The housing 11 is a case that forms the exterior of the ventilation unit 10 . The interior of the housing 11 is divided into a plurality of spaces by a plurality of partition walls.

Inside the housing 11, an indoor air supply space S1, an indoor exhaust space S2, an outdoor air introduction space S3, an outdoor exhaust space S4, the inner duct 40, and the outdoor air introduction duct 50 ) is delimited.

The indoor air supply space S1 and the indoor exhaust space S2 are positioned from the housing 11 to face the indoor, and the outdoor air introduction space S3 and the outdoor exhaust space S4 are positioned to face the outdoors do.

An air supply fan 17 is installed in the indoor air supply space S1 , and an exhaust fan 18 is installed in the outdoor exhaust space S4 .

An indoor air supply port 12 and an indoor exhaust port 13 are formed on the front surface 11a of the housing 11 at positions spaced apart from each other by a predetermined distance. On the rear surface 11b of the housing 11, an outdoor air inlet 14 and an outdoor exhaust port 15 are formed at positions spaced apart from each other by a predetermined distance.

The indoor air supply port 12 is formed to communicate with the indoor air supply space S1, and is a supply port for supplying purified air SA from the indoor air supply space S1 to the room R.

The indoor exhaust port 13 is an entrance for introducing the indoor air discharged from the room R into the ventilation unit 10 .

The outside air inlet 14 is communicated with the outside air introduction space S3 through the outside air introduction duct 50 , and is an inlet for introducing outside air into the outside air introduction space S3 .

The outdoor exhaust port 15 is formed to communicate with the outdoor exhaust space S4 and is an exhaust port for discharging air from the outdoor exhaust space S4 to the outside.

Inside the housing 11, the first partition wall 31, the second partition wall 32, the third partition wall 33, the fourth partition wall 34, the inner duct 40, and the outside air introduction duct 50 are provided. provided

The first partition wall 31 is a partition wall erected between the front surface 11a of the housing 11 and the total heat exchanger 30, and divides the front space of the housing 11 with the indoor air supply space S1 and It is partitioned into the indoor exhaust space (S2).

The second partition wall 32 is a partition wall erected between the rear surface 11b of the housing 11 and the total heat exchanger 30, and divides the rear space of the housing 11 into the outside air introduction space S3 and It is partitioned into the outdoor exhaust space (S4).

The third partition wall 33 is provided between the left side surface 11c of the housing 11 and the total heat exchanger 30 to separate the left side space of the housing 11 from the indoor exhaust space S2 and the It is partitioned into an outdoor air introduction space (S3).

The fourth partition wall 34 is provided between the right side surface 11d of the housing 11 and the total heat exchanger 30 to separate the right side space of the housing 11 from the indoor exhaust space S2 and the outdoor space. It is partitioned into an exhaust space (S4).

The inner duct 40 is formed to guide the indoor air introduced through the indoor exhaust port 13 inside the housing 11 to one of the outdoor air introduction space S3 and the outdoor exhaust space S4. it is a duct That is, the inner duct 40 is a bypass flow path for bypassing the indoor air introduced through the indoor exhaust port 13 .

The inner duct 40 is partitioned inside the housing 11 by a first inner partition wall 41 , a second inner partition wall 42 , and a third inner partition wall 43 .

The first inner partition wall 41 is vertically connected to the first partition wall 31 in the indoor exhaust space S2 and is disposed parallel to the front surface 11a of the housing 11 , ) to form a first bypass passage B1 between the front surface 11a and the front surface 11a.

The second inner partition wall 42 is vertically connected to an end of the first inner partition wall 41 and is disposed parallel to the left side surface 11c of the housing 11 , the left side surface of the housing 11 . A second bypass flow path B2 is formed between it and (11c).

The third inner partition wall 43 connects the end of the second inner partition wall 42 and the third partition wall 33 and is disposed parallel to the rear surface 11b of the housing 11, so that the housing ( 11) to form a third bypass passage B3 between the rear surface 11b and the rear surface 11b.

The outside air introduction duct 50 is a duct connected to the outside air introduction port 14 inside the housing 11 and formed to pass through the inner duct 40 . That is, the outside air introduction duct 50 connects the outside air introduction port 14 and the outside air introduction space S3, and the outside air introduced through the outside air introduction port 14 is the outside air introduction space S3. It is a duct that leads to That is, the outdoor air introduction duct 50 and the inner duct 40 are formed as separate flow paths, so that air flowing through each other is not mixed.

The total heat exchanger 20 is a heat exchanger that is disposed at an angle in the inner center of the housing 11 to exchange heat between outdoor air and indoor air. That is, the total heat exchanger 20 is formed in a rectangular parallelepiped shape, and four side surfaces are in the indoor air supply space S1, indoor exhaust space S2, outdoor air introduction space S3, and outdoor exhaust space S4, respectively. placed in communication.

The interior of the total heat exchanger 20 connects the first flow path connecting the indoor air supply space S1 and the outdoor air introduction space S3, and the indoor exhaust space S2 and the outdoor exhaust space S4. The second flow passages are formed to be perpendicular to each other, so that the air passing through the first flow passage and the air passing through the second flow passage are not mixed and only exchange heat while crossing each other.

The filter module 60 is installed on a surface of the total heat exchanger 20 facing at least one of the indoor air supply space S1 , the indoor exhaust space S2 , and the outdoor air introduction space S3 .

The filter module 60 includes a Hepa-filter 61 and a first pre-filter 62 installed on a surface facing the outside air introduction space S3, and the indoor air supply space S1. ) and a carbon filter 63 installed on the surface facing the , and the second pre-filter 64 installed on the surface facing the indoor exhaust space S2 will be described as an example. However, the present invention is not limited thereto, and the position and number of the filter modules 60 may be variously applied. The first and second pre-filters 62 are deodorizing filters.

The sterilization means includes a sterilization module 70 installed in the ventilation unit 10 for sterilizing the air passing through the ventilation unit 10, and a surface of the total heat exchanger 20 coated with a sterilizing material to It may include a sterilization coating (not shown) for sterilizing the air passing through the total heat exchanger.

The sterilization module 70 includes a first total heat exchanger sterilization lamp 71 installed on the surface facing the outdoor air introduction space S3 in the total heat exchanger 10, and the indoor air supply space in the total heat exchanger 10 ( Among the second total heat exchanger sterilization lamp 72 installed in S1), the indoor air inlet sterilization lamp 73 installed in the indoor air inlet 12, and the indoor exhaust sterilizing lamp 74 installed in the indoor exhaust port 13 contains at least one. However, the present invention is not limited thereto, and only some of the sterilization modules 70 may be applied, and the number or installation location may be variously changed.

In this embodiment, the sterilization means will be described as including all four sterilization lamps installed in the ventilation unit 10 and the sterilization coating part coated on the surface of the total heat exchanger 20 .

The first total heat exchanger sterilization lamp 71 and the second total heat exchanger sterilization lamp 72 may be UV lamps or LED lamps, and any sterilizable ones are applicable.

The indoor air inlet sterilization lamp 73 is detachably coupled to the indoor air inlet 12 and is replaceable. For example, the indoor air inlet sterilization lamp 73 is a kit detachably coupled between the indoor air inlet 12 and the air supply duct 110 connecting the air supply unit 600 .

The indoor exhaust port sterilization lamp 74 is detachably coupled to the indoor exhaust port 13 and is replaceable. For example, the indoor exhaust sterilization lamp 74 is a kit detachably coupled between the indoor exhaust port 13 and the exhaust duct 210 connecting the exhaust unit 200 .

The sterilization module 70, the control unit 400 may control the operation according to the operation mode. For example, the first total heat exchanger sterilization lamp 71 and the second total heat exchanger sterilization lamp 72 may be operated in the indoor humidification mode, but may not be operated in the ventilation mode.

Meanwhile, the plurality of dampers includes a damper 81 for a ventilation mode, a damper 82 for an indoor humidification mode, a damper 83 for an outdoor exhaust mode, and an outdoor air introduction damper 84 .

The ventilation mode damper 81 is a damper for opening and closing the ventilation mode opening hole 41a formed in the first inner partition wall 41 .

The damper for indoor humidification mode 82 is a damper for opening and closing the opening hole 42a for indoor humidification mode formed in the second inner partition wall 42 .

The damper 83 for outdoor exhaust mode is a damper for opening and closing the opening hole 32a for outdoor exhaust mode formed in the second partition wall 32 .

The fresh air inlet damper 84 is a damper installed in the outdoor air inlet 14 to open and close the outdoor air inlet 14 .

On the other hand, the air supply unit 600 is a single air supply unit configured to supply air from the ventilation unit 10 to only one air supply chamber R4, and the exhaust unit 200 is It is a single exhaust unit configured to be exhausted to the ventilation unit (10).

The air supply unit 600 is an air supply duct connecting the air supply chamber R4 and the indoor air supply port 12 of the ventilation unit 10 . A damper may be installed in the air supply duct.

Meanwhile, the exhaust unit 200 is a unit installed separately from the ventilation unit 10 to exhaust indoor air from the exhaust chamber R5 to which the air supply unit 600 is not connected.

The exhaust chamber R5 will be described as including at least one of a toilet and a bathroom. Hereinafter, in this embodiment, the exhaust room (R5) will be described as an example as a toilet equipped with a shower facility. However, the present invention is not limited thereto, and the exhaust chamber R5 may be set where a large amount of odor or moisture is generated.

An opening 201 is formed in the exhaust chamber R5 to allow indoor air to be sucked from the first to fourth chambers R1 to R4.

The opening 201 is described as an example formed in the door of the exhaust chamber R5. However, the present invention is not limited thereto, and the opening 201 may be formed on a wall surface or a window of the exhaust chamber R5.

The exhaust unit 200 includes an exhaust duct 210 , an opening/closing member 230 , an emergency duct 240 , and an emergency valve 242 .

The exhaust duct 210, one end is connected to the indoor exhaust port 13 of the ventilation unit 10, the other end is connected to the exhaust port of the exhaust room (R5), the ventilation from the exhaust room (R5) A pipe for guiding indoor air to the unit 10 .

The opening and closing member 230 is installed in the opening 201 and is formed to open and close the opening 201 under the control of the controller 400 . The opening/closing member 230 includes a louver (not shown) in which a plurality of plates are horizontally or vertically arranged to be spaced apart from each other at a predetermined distance in the opening 201, and the opening 201 by rotating the louver (not shown). It includes a driving unit (not shown) for opening and closing.

In this embodiment, the opening and closing member 230 will be described as an automatic type that automatically opens and closes the opening 201 according to the operation of the control unit 400 .

However, the present invention is not limited thereto, and the opening 201 may have only an opening hole formed to be opened so as to always maintain an open state. When only the opening hole is formed in the opening 201 , it is preferable that the opening 201 is formed only on a part of the lower end or part of the upper part of the door of the exhaust room R5 in order to protect the privacy of a user using the toilet or bathroom.

In addition, it is also possible that the louver is installed in the opening 201 inclined downward.

In addition, it is of course possible that the louver is installed to be operated manually.

The emergency duct 240 is a pipe that is connected to at least one of the rooms to which the exhaust duct 210 is not connected and is opened only in an emergency situation including a fire. That is, the emergency duct 240 is a pipe having one end connected to at least one of the first to fourth rooms R1 to R4 and the other end connected to the exhaust duct 210 .

Here, the emergency situation may include a case in which at least one of the indoor temperature and humidity measured by the indoor temperature-humidity measuring unit 75 exceeds a preset limit value as well as the occurrence of a fire.

The emergency valve 242 is installed in the emergency duct 240 to open and close the emergency duct 240 under the control of the controller 400 .

Meanwhile, the air circulation system further includes an exhaust room use detection unit 310 and an emergency situation detection unit 320 .

The exhaust chamber use detection unit 310 detects whether the exhaust chamber R5 is being used. The exhaust room use detection unit 310 includes a light sensor (not shown) for detecting whether power is applied to the light installed in the exhaust room R5, and detecting whether a occupant of the exhaust room R5 enters or exits the exhaust room R5. It may include at least one of an occupant detection sensor (not shown). That is, when the light of the exhaust room R5 is turned on, it can be determined that the exhaust room R5 is in use, and when the light of the exhaust room R5 is turned off, it is determined that the user of the exhaust room R5 has left. can do.

The emergency detection unit 320 may include a fire detection sensor (not shown) or a smoke detection sensor (not shown).

Meanwhile, the air circulation system includes an indoor pollution level measurement unit 91 , an outdoor pollution level measurement unit 92 , an indoor carbon dioxide concentration measurement unit 93 , an outdoor temperature and humidity measurement unit 94 , an indoor temperature and humidity measurement unit 95 and heating. It further includes a coil 96 .

The indoor pollution level measuring unit 91 is a sensor for measuring the indoor air pollution level. In this embodiment, the indoor pollution level measuring unit 91 will be described as an example of a dust sensor installed indoors and measuring the concentration of dust in the indoor air. The dust includes not only dust generated indoors, but also dust introduced from the outdoors. However, the present invention is not limited thereto, and it is possible to measure a component indicating pollution of indoor air other than dust, and it is also possible to receive a value measured by another measuring device.

The outdoor pollution level measurement unit 92 is a sensor installed outdoors to measure the pollution level of the outdoor air. The outdoor pollution level measurement unit 92 is installed on the outer wall of a building in which the air circulation system is installed and can be directly measured, and it is also possible to receive the pollution level of outdoor air measured by the Meteorological Administration or an external organization through wired or wireless communication. Do.

The indoor carbon dioxide concentration measuring unit 93 is a sensor installed indoors to measure the carbon dioxide concentration in indoor air.

The outdoor temperature and humidity measuring unit 94 receives the temperature and humidity of the outdoor air. The outdoor temperature and humidity measuring unit 94 is installed on the outer wall of a building where the air circulation system is installed and can be directly measured, and it is also possible to receive the pollution degree of outdoor air measured by the Meteorological Administration or an external organization through wired or wireless communication. .

The indoor temperature and humidity measuring unit 95 measures the indoor temperature and humidity.

The heating coil 96 is a heater that is installed in the outside air introduction duct 50 connected to the outside air introduction port 13 and generates heat when electricity is applied.

On the other hand, the control unit 400, the ventilation unit 10, the air supply unit 600, the exhaust unit 200 according to the operation mode including the ventilation mode, the indoor humidification mode and the outdoor exhaust mode, It controls the operation of the plurality of dampers and the emergency valve 242 .

The control unit 400 controls the operation of the ventilation unit 10 according to the values measured by the indoor pollution level measurement unit 91 , the outdoor pollution level measurement unit 92 , and the indoor carbon dioxide concentration measurement unit 93 . do. That is, the control unit 400 controls the air supply fan 17 and the air supply fan 17 according to the values measured by the indoor pollution level measurement unit 91 , the outdoor pollution level measurement unit 92 and the indoor carbon dioxide concentration measurement unit 93 . The exhaust fan 18 controls opening and closing of the plurality of dampers, respectively.

In addition, the control unit 400 controls the operation of the air supply unit 600 according to different ventilation conditions for each of the plurality of rooms R1 to R4. That is, the control unit 400 individually controls the plurality of dampers according to the carbon dioxide concentration, indoor pollution degree, indoor temperature, indoor humidity, and occupant status of the plurality of rooms R1 to R4, The air supply rate for each R1~R4) can be varied.

In addition, the control unit 400 controls the exhaust according to whether the ventilation unit 10 operates and whether the exhaust chamber R5 is used. That is, the control unit 400 operates the exhaust fan 22 when the ventilation unit 10 is operated, and when it is determined that the exhaust chamber R5 is in use when the ventilation unit 10 is stopped, the The exhaust fan 18 is operated and the air supply fan 17 is stopped.

In addition, the control unit 400 controls the use of the emergency duct 240 by determining the emergency situation of the room (R).

Also, the controller 400 may control whether the opening 201 is opened or closed according to whether the exhaust chamber R5 is used.

The operation of the air circulation system using the toilet and bathroom according to the first embodiment of the present invention configured as described above will be described as follows.

5 is a view showing the operating state of the ventilation unit in the ventilation mode of the air circulation system according to the first embodiment of the present invention.

First, with reference to FIGS. 1 and 5, the ventilation mode will be described as follows.

In the ventilation mode, when the values measured by the indoor pollution level measurement unit 91 and the indoor carbon dioxide concentration measurement unit 93 exceed a preset value, the control unit 400 determines that ventilation of the room is necessary and the It is a mode in which the air supply fan 17 and the exhaust fan 18 of the ventilation unit 10 are operated.

In the ventilation mode, the control unit 400 operates both the air supply fan 17 and the exhaust fan 18 , and opens the outside air introduction damper 84 .

Also, the control unit 400 controls the damper 81 for the ventilation mode to open the opening hole 41a for the ventilation mode.

Also, the control unit 400 controls the damper 82 for the indoor humidification mode to block the opening hole 43a for the indoor humidification mode.

Also, the controller 400 controls the damper 83 for the outdoor exhaust mode to block the opening hole 32a for the outdoor exhaust mode.

Accordingly, in the ventilation mode, the indoor air RA discharged from the rooms R is introduced into the ventilation unit 10 through the indoor exhaust port 13 .

The indoor air RA introduced into the ventilation unit 10 is supplied to the ventilation mode opening hole 41a, the indoor exhaust space S2, the total heat exchanger 20 and the ventilation mode inside the ventilation unit 10. After passing through the outdoor exhaust space ( S4 ) in turn, it is discharged to the outside through the outdoor exhaust port ( 15 ).

In addition, in the ventilation mode, outside air OA is introduced into the ventilation unit 10 through the outside air inlet 14 , and the outside air introduction duct 50 , the outside air inside the ventilation unit 10 . After passing through the introduction space S3, the first total heat exchanger sterilization lamp 71, the total heat exchanger 20, the second total heat exchanger sterilization lamp 72, and the indoor air supply space S1 in sequence, the indoor It is supplied into the room through the supply port (12).

At this time, in the total heat exchanger 20 , heat exchange between the outdoor air OA and the indoor air RA is performed.

In addition, the outdoor air (OA) is sterilized while passing through the first total heat exchanger sterilization lamp 71 and the second total heat exchanger sterilization lamp 72 installed at the front and rear ends of the total heat exchanger 20, respectively, and then It flows into the indoor air supply space (S1).

Also, the outside air may be purified while passing through the filter module 60 .

In addition, in the ventilation mode, the control unit 400 operates the indoor air inlet sterilization lamp 73 and the indoor exhaust sterilization lamp 74, but the first total heat exchanger sterilization lamp 71 and the second electric heat It will be described as an example of stopping the operation of the exchanger sterilization lamp 72 . That is, if it is determined that there is no need to sterilize the outside air in the ventilation mode, the operation of the first total heat exchanger sterilization lamp 71 and the second total heat exchanger sterilization lamp 72 may be stopped. However, the present invention is not limited thereto, and the indoor air inlet sterilizing lamp 73 and the indoor exhaust sterilizing lamp 74 may of course be operated.

Meanwhile, while performing the ventilation mode, in the total heat exchanger 20, heat exchange between the outdoor air OA and the indoor air RA, which have different temperatures and humidity, is performed, so that on the surface of the total heat exchanger 20, Condensation may occur. In particular, while the temperature and humidity of the outdoor air OA are low in winter, the indoor air RA is introduced from the toilet and bathroom so that the temperature and humidity are very high. Therefore, when the ventilation mode is performed in winter, the rate of occurrence of dew condensation is greatly increased.

Accordingly, the control unit 400 removes the dew condensation of the total heat exchanger 20 and performs an indoor humidification mode for humidifying a dry indoor every preset time or at a preset time interval.

6 is a view showing the operating state of the ventilation unit in the indoor humidification mode of the air circulation system according to the first embodiment of the present invention.

The indoor humidification mode will be described with reference to FIGS. 2 and 6 as follows.

The indoor humidification mode is an operation mode in which the indoor air (RA) is circulated without introducing outside air (OA) to prevent dew condensation in the total heat exchanger and to humidify the room.

When the execution time of the ventilation mode elapses the preset maximum ventilation time, the control unit 400 may switch the ventilation mode to the indoor humidification mode and perform the indoor humidification mode for a preset minimum indoor humidification time. . Here, the maximum ventilation time, the time before the occurrence of dew condensation in the total heat exchanger 20 or a time in consideration of the rate of occurrence of dew condensation, and the like, may be preset through an experiment or the like.

In addition, the control unit 400 may perform the indoor humidification mode for the minimum indoor humidification time even while the operation of the ventilation unit 10 is stopped.

In the indoor humidification mode, the control unit 400 operates the air supply fan 17 and stops the exhaust fan 18 .

In addition, the control unit 400 shields the damper 81 for the ventilation mode, opens the damper 82 for the indoor humidification mode, and the outdoor air introduction damper 84 and the outdoor exhaust mode damper 83 ) is shielded.

In addition, the control unit 400 controls the first total heat exchanger sterilization lamp 71 , the second total heat exchanger sterilization lamp 72 , the indoor air inlet sterilization lamp 73 and the indoor exhaust sterilization lamp 74 . all work

Accordingly, in the indoor humidification mode, the indoor air RA discharged from the exhaust chamber R5 passes through the exhaust unit 200 and then flows into the ventilation unit 10 through the indoor exhaust port 13 . do.

At this time, since both the indoor air inlet sterilizing lamp 73 and the indoor exhaust sterilizing lamp 74 are operated, the indoor air discharged from the exhaust chamber R5 can be sterilized.

The indoor air (RA) introduced into the ventilation unit (10) is the inner duct (40), the opening hole (43a) for the indoor humidification mode, and the outdoor air introduction space (S3) inside the ventilation unit (10). , after passing through the first total heat exchanger sterilization lamp 71, the total heat exchanger 20, the second total heat exchanger sterilization lamp 72 and the indoor air supply space S1 in sequence, the indoor air supply port 12 supplied indoors through

That is, the indoor air RA introduced into the ventilation unit 10 does not flow into the indoor exhaust space S2 but bypasses the indoor exhaust space S2, so that the first After the bypass flow path B1 and the second bypass flow path B2 flow sequentially, the outside air is introduced into the outside air introduction space S3.

Accordingly, the indoor air RA passes through the total heat exchanger 20 in a direction from the outside air introduction space S3 toward the indoor air supply space S1.

At this time, since the temperature of the indoor air RA is higher than the temperature of the outdoor air OA in winter, the indoor air RA passes through the total heat exchanger 20 and the heat transfer is generated by the heat of the indoor air RA. It can be removed by evaporating the dew condensation generated in the exchanger (20).

In addition, since the air with increased humidity passing through the total heat exchanger 20 is supplied to the room, the supply air SA supplied to the room can sufficiently humidify the dry room.

At this time, the indoor air RA is first sterilized while passing through the indoor exhaust sterilization lamp 74 installed in the indoor exhaust port 13 , and then flows into the ventilation unit 10 .

In addition, the indoor air (RA) passes through the first total heat exchanger sterilization lamp 71 and the second total heat exchanger sterilization lamp 72 installed at the front and rear ends of the total heat exchanger 20, respectively. Tea can be sterilized.

In addition, the indoor air (RA) passes through the HEPA filter 61 and the first and second pre-filters 62 installed at the front and rear ends of the total heat exchanger 20, such as odors, volatile organic compounds (VOCs), etc. By removing this, clean air can be supplied to the room.

In addition, the air that has passed through the total heat exchanger 20 may be sterilized fourth while passing through the indoor air inlet sterilization lamp 73 installed in the indoor air inlet 12 .

As described above, the control unit 400 performs the indoor humidification mode for a preset minimum indoor humidification time in the middle of performing the ventilation mode, so that the temperature difference between the outdoor air (OA) and the indoor air (RA) in the ventilation mode is controlled. As well as removing the dew condensation generated by the heat exchanger, it is possible to supply humidified air to the room while passing through the total heat exchanger.

In addition, when the humidified air is supplied to the room, since the first total heat exchanger sterilization lamp 71 and the second total heat exchanger sterilization lamp 72 pass through and supply after sterilization, clean air can be supplied.

Meanwhile, FIG. 7 is a view showing the operating state of the ventilation unit in the outdoor exhaust mode of the air circulation system according to the first embodiment of the present invention.

The outdoor exhaust mode will be described with reference to FIGS. 3 and 7 as follows.

The outdoor exhaust mode is a bypass operation mode in which indoor air (RA) is directly discharged to the outdoors without introducing outside air (OA) without passing through the total heat exchanger (20).

In the outdoor exhaust mode, the controller 400 stops the air supply fan 17 and operates only the exhaust fan 18 .

In addition, the control unit 400 shields all of the outdoor air introduction damper 84, the ventilation mode damper 81, and the indoor humidification mode damper 82, and the outdoor exhaust mode damper 83 is open up

Accordingly, in the outdoor exhaust mode, the indoor air RA discharged from the exhaust chamber R5 is introduced into the ventilation unit 10 through the indoor exhaust port 13 .

The indoor air (RA) introduced into the ventilation unit (10) flows through the inner duct (40), the outdoor exhaust mode opening hole (32a), the outdoor exhaust space (S4), and the outdoor exhaust port (15). discharged outside.

That is, the indoor air RA flows along the first bypass flow path B1, the second bypass flow path B2, and the third bypass flow path B3, and thereafter, for the outdoor exhaust mode. After being discharged to the outdoor exhaust space S4 through the opening hole 32a, it is discharged to the outside through the outdoor exhaust port 15.

As described above, in the outdoor exhaust mode, since the indoor air RA with high humidity discharged from the exhaust chamber R5 is directly discharged to the outdoors without passing through the total heat exchanger 20, the indoor air RA ) can be prevented from weakening the durability of the total heat exchanger 20 due to high humidity. In addition, it is possible to prevent the formation of an environment for bacteria or fungi to grow on the surface of the total heat exchanger 20 .

On the other hand, if it is determined that ventilation of the room is not necessary according to the values measured by the indoor pollution level measurement unit 91 and the indoor carbon dioxide concentration measurement unit 93 , the control unit 400 controls the ventilation unit 10 . stop working.

While the operation of the ventilation unit 10 is stopped, the control unit 400 may perform the indoor humidification mode at preset time intervals.

In addition, while the operation of the ventilation unit 10 is stopped, the control unit 400 determines in real time whether the exhaust chamber R5 is in use, and when it is determined that the exhaust chamber R5 is in use, the outdoor exhaust mode can be performed.

Since the exhaust room R5 is a toilet or a bathroom, odor or humidity increases when it is in use, so exhaust is required regardless of whether other rooms in the room are ventilated.

Accordingly, by exhausting the air through the ventilation unit when using the toilet or bathroom, it is possible to replace the fan installed in the toilet or bathroom. That is, since there is no need to install a separate exhaust fan in the toilet or bathroom, the cost can be reduced.

Whether or not to use the exhaust room R5 can be determined depending on whether power is applied to the light of the exhaust room R5, and can also be determined depending on whether a occupant of the exhaust room R5 enters or exits the exhaust room R5. Do.

The control unit 400 may perform the outdoor exhaust mode when it is determined by the exhaust chamber use detection unit 310 that the exhaust chamber R5 is in use.

Thereafter, when it is determined that the use of the exhaust chamber R5 is finished, the control unit 400 performs the outdoor exhaust mode for a preset time from the point in time when all the use of the exhaust chamber R5 is finished. , when the set time elapses, the outdoor exhaust mode may be stopped.

Therefore, even after the use of the exhaust chamber R5 is completely exhausted, the indoor air of the exhaust chamber R5 can be sufficiently exhausted by exhausting for the set time. However, the present invention is not limited thereto, and the exhaust chamber ( Of course, it is also possible to stop the outdoor exhaust mode when the use of R5 is finished.

On the other hand, if it is determined that the emergency situation is an emergency situation from the information detected by the emergency situation detection unit 320 , the control unit 400 operates the exhaust fan 18 , and the opening and closing member 230 closes the opening 201 . control to open.

In addition, the control unit 400 controls the emergency valve 242 to open the emergency duct 240 .

Here, the emergency situation may include a case in which at least one of the indoor temperature and humidity measured by the indoor temperature-humidity measuring unit 75 exceeds a preset limit value as well as the occurrence of a fire.

When both the opening 201 and the emergency duct 240 are opened, some of the air in the first to fourth chambers R1 to R4 is sucked into the exhaust chamber R5 through the opening 201 and then exhausted. and the rest may be exhausted through the emergency duct 240 .

Therefore, by evacuating only through the exhaust chamber R5 in normal times, not in emergency situations, and by opening and exhausting the emergency duct 240 only when an emergency situation occurs, it is possible to respond to an emergency situation even if the exhaust duct facility is minimized.

On the other hand, Figure 9 is a view showing an operating state in the ventilation mode of the air circulation system according to the second embodiment of the present invention. 10 is a view showing an operating state of the air circulation system in the indoor humidification mode according to the second embodiment of the present invention. 11 is a view showing an operating state of the air circulation system in the outdoor exhaust mode according to the second embodiment of the present invention.

9 to 11, the air circulation system according to the second embodiment of the present invention is a system for ventilating the air of the room R including the plurality of rooms R1 to R4, a bar, a toilet and a bathroom The configuration in which exhaust is made only in one exhaust chamber R5 including at least one of the exhaust chambers and supply air is made in each of the first to fourth chambers R1 to R4 except for the exhaust chamber is the first embodiment. is different from, and the rest of the configurations and actions are similar, so the description will be focused on different points and detailed descriptions of the similar configurations and actions will be omitted.

That is, in the second embodiment of the present invention, the air supply unit is an air supply multi-branch unit 100 that supplies air from the ventilation unit 10 to a plurality of rooms R1 to R4, and the exhaust unit 200 is one It will be described as a single exhaust unit exhausting from the exhaust chamber R5 to the ventilation unit 10 .

In this embodiment, the room is divided into a plurality of rooms (R1 to R4), and the air supply multi-branch unit 100 to be described later is described as an example connected to the plurality of rooms (however, among the plurality of rooms) may be connected only to two or more), but not limited thereto, and when the room is a single room, the air supply multi-branch unit 100 is connected to a plurality of locations in the single room, and it is also possible to distribute and supply air to a plurality of locations. .

In addition, although the exhaust room R5 has been described as including at least one of a toilet and a bathroom, it is not limited thereto and may be set to a place where a large amount of moisture or odor is generated, such as a laundry room.

The air circulation system includes a ventilation unit 10 , a supply air multi-branch unit 100 , an exhaust unit 200 , and a control unit 400 .

The ventilation unit 10 is a device for ventilating the indoor air by introducing outside air to supply air to the room, sucking in the indoor air and exhausting it to the outside.

The ventilation unit 10 includes a housing 11, a total heat exchanger 20, a first bulkhead 31, a second bulkhead 32, a third bulkhead 33, a fourth bulkhead 34, and an inner duct ( 40), the fresh air introduction duct 50, the filter module 60, sterilization means and a plurality of dampers.

The housing 11 is a case that forms the exterior of the ventilation unit 10 . The interior of the housing 11 is divided into a plurality of spaces by a plurality of partition walls.

Inside the housing 11, an indoor air supply space S1, an indoor exhaust space S2, an outdoor air introduction space S3, an outdoor exhaust space S4, the inner duct 40, and the outdoor air introduction duct 50 ) is delimited.

The indoor air supply space S1 and the indoor exhaust space S2 are positioned from the housing 11 to face the indoor, and the outdoor air introduction space S3 and the outdoor exhaust space S4 are positioned to face the outdoors do.

An air supply fan 17 is installed in the indoor air supply space S1 , and an exhaust fan 18 is installed in the outdoor exhaust space S4 .

An indoor air supply port 12 and an indoor exhaust port 13 are formed on the front surface 11a of the housing 11 at positions spaced apart from each other by a predetermined distance. On the rear surface 11b of the housing 11, an outdoor air inlet 14 and an outdoor exhaust port 15 are formed at positions spaced apart from each other by a predetermined distance.

The indoor air supply port 12 is formed to communicate with the indoor air supply space S1, and is a supply port for supplying purified air SA from the indoor air supply space S1 to the room R.

The indoor exhaust port 13 is an entrance for introducing the indoor air discharged from the room R into the ventilation unit 10 .

The outside air inlet 14 is communicated with the outside air introduction space S3 through the outside air introduction duct 50 , and is an inlet for introducing outside air into the outside air introduction space S3 .

The outdoor exhaust port 15 is formed to communicate with the outdoor exhaust space S4 and is an exhaust port for discharging air from the outdoor exhaust space S4 to the outside.

Inside the housing 11, the first partition wall 31, the second partition wall 32, the third partition wall 33, the fourth partition wall 34, the inner duct 40, and the outside air introduction duct 50 are provided. provided

The first partition wall 31 is a partition wall erected between the front surface 11a of the housing 11 and the total heat exchanger 30, and divides the front space of the housing 11 with the indoor air supply space S1 and It is partitioned into the indoor exhaust space (S2).

The second partition wall 32 is a partition wall erected between the rear surface 11b of the housing 11 and the total heat exchanger 30, and divides the rear space of the housing 11 into the outside air introduction space S3 and It is partitioned into the outdoor exhaust space (S4).

The third partition wall 33 is provided between the left side surface 11c of the housing 11 and the total heat exchanger 30 to separate the left side space of the housing 11 from the indoor exhaust space S2 and the It is partitioned into an outdoor air introduction space (S3).

The fourth partition wall 34 is provided between the right side surface 11d of the housing 11 and the total heat exchanger 30 to separate the right side space of the housing 11 from the indoor exhaust space S2 and the outdoor space. It is partitioned into an exhaust space (S4).

The inner duct 40 is formed to guide the indoor air introduced through the indoor exhaust port 13 inside the housing 11 to one of the outdoor air introduction space S3 and the outdoor exhaust space S4. it is a duct That is, the inner duct 40 is a bypass flow path for bypassing the indoor air introduced through the indoor exhaust port 13 .

The inner duct 40 is partitioned inside the housing 11 by a first inner partition wall 41 , a second inner partition wall 42 , and a third inner partition wall 43 .

The first inner partition wall 41 is vertically connected to the first partition wall 31 in the indoor exhaust space S2 and is disposed parallel to the front surface 11a of the housing 11 , ) to form a first bypass passage B1 between the front surface 11a and the front surface 11a.

The second inner partition wall 42 is vertically connected to an end of the first inner partition wall 41 and is disposed parallel to the left side surface 11c of the housing 11 , the left side surface of the housing 11 . A second bypass flow path B2 is formed between it and (11c).

The third inner partition wall 43 connects the end of the second inner partition wall 42 and the third partition wall 33 and is disposed parallel to the rear surface 11b of the housing 11, so that the housing ( 11) to form a third bypass passage B3 between the rear surface 11b and the rear surface 11b.

The outside air introduction duct 50 is a duct connected to the outside air introduction port 14 inside the housing 11 and formed to pass through the inner duct 40 . That is, the outside air introduction duct 50 connects the outside air introduction port 14 and the outside air introduction space S3, and the outside air introduced through the outside air introduction port 14 is the outside air introduction space S3. It is a duct that leads to That is, the outdoor air introduction duct 50 and the inner duct 40 are formed as separate flow paths, so that air flowing through each other is not mixed.

The total heat exchanger 20 is a heat exchanger that is disposed at an angle in the inner center of the housing 11 to exchange heat between outdoor air and indoor air. That is, the total heat exchanger 20 is formed in a rectangular parallelepiped shape, and four side surfaces are in the indoor air supply space S1, indoor exhaust space S2, outdoor air introduction space S3, and outdoor exhaust space S4, respectively. placed in communication.

The interior of the total heat exchanger 20 connects the first flow path connecting the indoor air supply space S1 and the outdoor air introduction space S3, and the indoor exhaust space S2 and the outdoor exhaust space S4. The second flow passages are formed to be perpendicular to each other, so that the air passing through the first flow passage and the air passing through the second flow passage are not mixed and only exchange heat while crossing each other.

The filter module 60 is installed on a surface of the total heat exchanger 20 facing at least one of the indoor air supply space S1 , the indoor exhaust space S2 , and the outdoor air introduction space S3 .

The filter module 60 includes a Hepa-filter 61 and a first pre-filter 62 installed on a surface facing the outside air introduction space S3, and the indoor air supply space S1. ) and a carbon filter 63 installed on the surface facing the , and the second pre-filter 64 installed on the surface facing the indoor exhaust space S2 will be described as an example. However, the present invention is not limited thereto, and the position and number of the filter modules 60 may be variously applied. The first and second pre-filters 62 are deodorizing filters.

The sterilization means includes a sterilization module 70 installed in the ventilation unit 10 for sterilizing the air passing through the ventilation unit 10, and a surface of the total heat exchanger 20 coated with a sterilizing material to It may include a sterilization coating (not shown) for sterilizing the air passing through the total heat exchanger.

The sterilization module 70 includes a first total heat exchanger sterilization lamp 71 installed on the surface facing the outdoor air introduction space S3 in the total heat exchanger 10, and the indoor air supply space in the total heat exchanger 10 ( Among the second total heat exchanger sterilization lamp 72 installed in S1), the indoor air inlet sterilization lamp 73 installed in the indoor air inlet 12, and the indoor exhaust sterilizing lamp 74 installed in the indoor exhaust port 13 contains at least one. However, the present invention is not limited thereto, and only some of the sterilization modules 70 may be applied, and the number or installation location may be variously changed.

In this embodiment, the sterilization means will be described as including all four sterilization lamps installed in the ventilation unit 10 and the sterilization coating part coated on the surface of the total heat exchanger 20 .

The first total heat exchanger sterilization lamp 71 and the second total heat exchanger sterilization lamp 72 may be UV lamps or LED lamps, and any sterilizable ones are applicable.

The indoor air inlet sterilization lamp 73 is detachably coupled to the indoor air inlet 12 and is replaceable. For example, the indoor air inlet sterilization lamp 73 is a kit detachably coupled between the indoor air inlet 12 and the air supply duct 110 connecting the air supply multi-branch unit 100 .

The indoor exhaust port sterilization lamp 74 is detachably coupled to the indoor exhaust port 13 and is replaceable. For example, the indoor exhaust sterilization lamp 74 is a kit detachably coupled between the indoor exhaust port 13 and the exhaust duct 210 connecting the exhaust unit 200 .

The sterilization module 70, the control unit 400 may control the operation according to the operation mode. For example, the first total heat exchanger sterilization lamp 71 and the second total heat exchanger sterilization lamp 72 may be operated in the indoor humidification mode, but may not be operated in the ventilation mode.

Meanwhile, the plurality of dampers includes a damper 81 for a ventilation mode, a damper 82 for an indoor humidification mode, a damper 83 for an outdoor exhaust mode, and an outdoor air introduction damper 84 .

The ventilation mode damper 81 is a damper for opening and closing the ventilation mode opening hole 41a formed in the first inner partition wall 41 .

The damper for indoor humidification mode 82 is a damper for opening and closing the opening hole 42a for indoor humidification mode formed in the second inner partition wall 42 .

The damper 83 for outdoor exhaust mode is a damper for opening and closing the opening hole 32a for outdoor exhaust mode formed in the second partition wall 32 .

The fresh air inlet damper 84 is a damper installed in the outdoor air inlet 14 to open and close the outdoor air inlet 14 .

On the other hand, the air supply multi-branch unit 100 is installed between one ventilation unit 10 and the plurality of spaces, and distributes and supplies the air supplied from the ventilation unit 10 to the plurality of spaces. It is a multi-branch unit. Here, the space is described as an example of a plurality of rooms R1 to R4 of the building, but is not limited thereto, and the space may be spaces partitioned into one room.

The air supply multi-branch unit 100 is connected to the indoor air supply port 12 of the ventilation unit 10 , and the other end thereof is connected to the first to fourth rooms R1 to R4, respectively.

One side of the air supply multi-branch unit 100 is connected to the air supply duct 110 connected to the ventilation unit 10, and the other side is first to fourth connected to the plurality of first to fourth rooms R1 to R4, respectively. It is connected to the branch ducts (101-104). Dampers are installed in the first to fourth branch ducts 101 to 104, respectively.

Meanwhile, the exhaust unit 200 is a unit installed separately from the ventilation unit 10 to exhaust indoor air from the exhaust chamber R5 to which the air supply multi-branch unit 100 is not connected.

The exhaust chamber R5 will be described as including at least one of a toilet and a bathroom. Hereinafter, in this embodiment, the exhaust room (R5) will be described as an example as a toilet equipped with a shower facility. However, the present invention is not limited thereto, and the exhaust chamber R5 may be set where a large amount of odor or moisture is generated.

An opening 201 is formed in the exhaust chamber R5 to allow indoor air to be sucked from the first to fourth chambers R1 to R4.

The opening 201 is described as an example formed in the door of the exhaust chamber R5. However, the present invention is not limited thereto, and the opening 201 may be formed on a wall surface or a window of the exhaust chamber R5.

The exhaust unit 200 includes an exhaust duct 210 , an opening/closing member 230 , an emergency duct 240 , and an emergency valve 242 .

The exhaust duct 210, one end is connected to the indoor exhaust port 13 of the ventilation unit 10, the other end is connected to the exhaust port of the exhaust room (R5), the ventilation from the exhaust room (R5) A pipe for guiding indoor air to the unit 10 .

The opening and closing member 230 is installed in the opening 201 and is formed to open and close the opening 201 under the control of the controller 400 . The opening/closing member 230 includes a louver (not shown) in which a plurality of plates are horizontally or vertically arranged to be spaced apart from each other at a predetermined distance in the opening 201, and the opening 201 by rotating the louver (not shown). It includes a driving unit (not shown) for opening and closing.

In this embodiment, the opening and closing member 230 will be described as an automatic type that automatically opens and closes the opening 201 according to the operation of the control unit 400 .

However, the present invention is not limited thereto, and the opening 201 may have only an opening hole formed to be opened so as to always maintain an open state. When only the opening hole is formed in the opening 201 , it is preferable that the opening 201 is formed only on a part of the lower end or part of the upper part of the door of the exhaust room R5 in order to protect the privacy of a user using the toilet or bathroom.

In addition, it is also possible that the louver is installed in the opening 201 inclined downward.

In addition, it is of course possible that the louver is installed to be operated manually.

The emergency duct 240 is a pipe that is connected to at least one of the rooms to which the exhaust duct 210 is not connected and is opened only in an emergency situation including a fire. That is, the emergency duct 240 is a pipe having one end connected to at least one of the first to fourth rooms R1 to R4 and the other end connected to the exhaust duct 210 .

Here, the emergency situation may include a case in which at least one of the indoor temperature and humidity measured by the indoor temperature-humidity measuring unit 75 exceeds a preset limit value as well as the occurrence of a fire.

The emergency valve 242 is installed in the emergency duct 240 to open and close the emergency duct 240 under the control of the controller 400 .

Meanwhile, the air circulation system further includes an exhaust room use detection unit 310 and an emergency situation detection unit 320 .

The exhaust chamber use detection unit 310 detects whether the exhaust chamber R5 is being used. The exhaust room use detection unit 310 includes a light sensor (not shown) for detecting whether power is applied to the light installed in the exhaust room R5, and detecting whether a occupant of the exhaust room R5 enters or exits the exhaust room R5. It may include at least one of an occupant detection sensor (not shown). That is, when the light of the exhaust room R5 is turned on, it can be determined that the exhaust room R5 is in use, and when the light of the exhaust room R5 is turned off, it is determined that the user of the exhaust room R5 has left. can do.

The emergency detection unit 320 may include a fire detection sensor (not shown) or a smoke detection sensor (not shown).

Meanwhile, the air circulation system includes an indoor pollution level measurement unit 91 , an outdoor pollution level measurement unit 92 , an indoor carbon dioxide concentration measurement unit 93 , an outdoor temperature and humidity measurement unit 94 , an indoor temperature and humidity measurement unit 95 and heating. It further includes a coil 96 .

The indoor pollution level measuring unit 91 is a sensor for measuring the indoor air pollution level. In this embodiment, the indoor pollution level measuring unit 91 will be described as an example of a dust sensor installed indoors and measuring the concentration of dust in the indoor air. The dust includes not only dust generated indoors, but also dust introduced from the outdoors. However, the present invention is not limited thereto, and it is possible to measure a component indicating pollution of indoor air other than dust, and it is also possible to receive a value measured by another measuring device.

The outdoor pollution level measurement unit 92 is a sensor installed outdoors to measure the pollution level of the outdoor air. The outdoor pollution level measurement unit 92 is installed on the outer wall of a building in which the air circulation system is installed and can be directly measured, and it is also possible to receive the pollution level of outdoor air measured by the Meteorological Administration or an external organization through wired or wireless communication. Do.

The indoor carbon dioxide concentration measuring unit 93 is a sensor installed indoors to measure the carbon dioxide concentration in indoor air.

The outdoor temperature and humidity measuring unit 94 receives the temperature and humidity of the outdoor air. The outdoor temperature and humidity measuring unit 94 is installed on the outer wall of a building where the air circulation system is installed and can be directly measured, and it is also possible to receive the pollution degree of outdoor air measured by the Meteorological Administration or an external organization through wired or wireless communication. .

The indoor temperature and humidity measuring unit 95 measures the indoor temperature and humidity.

The heating coil 96 is a heater that is installed in the outside air introduction duct 50 connected to the outside air introduction port 13 and generates heat when electricity is applied.

On the other hand, the control unit 400, the ventilation unit 10, the air supply multi-branch unit 100, the exhaust unit 200 according to the operation mode including the ventilation mode, the indoor humidification mode, and the outdoor exhaust mode. ), controls the operation of the plurality of dampers and the emergency valve 242 .

The control unit 400 controls the operation of the ventilation unit 10 according to the values measured by the indoor pollution level measurement unit 91 , the outdoor pollution level measurement unit 92 , and the indoor carbon dioxide concentration measurement unit 93 . do. That is, the control unit 400 controls the air supply fan 17 and the air supply fan 17 according to the values measured by the indoor pollution level measurement unit 91 , the outdoor pollution level measurement unit 92 and the indoor carbon dioxide concentration measurement unit 93 . The exhaust fan 18 controls opening and closing of the plurality of dampers, respectively.

In addition, the control unit 400 controls the operation of the air supply multi-branch unit 100 according to different ventilation conditions for each of the plurality of rooms R1 to R4. That is, the control unit 400 individually controls the plurality of dampers according to the carbon dioxide concentration of the plurality of rooms, the indoor pollution degree, the indoor temperature, the indoor humidity, and whether the occupant is occupant, and each The air supply rate can be different.

In addition, the control unit 400 controls the exhaust according to whether the ventilation unit 10 operates and whether the exhaust chamber R5 is used. That is, the control unit 400 operates the exhaust fan 22 when the ventilation unit 10 is operated, and when it is determined that the exhaust chamber R5 is in use when the ventilation unit 10 is stopped, the The exhaust fan 18 is operated and the air supply fan 17 is stopped.

In addition, the control unit 400 controls the use of the emergency duct 240 by determining the emergency situation of the room (R).

Also, the controller 400 may control whether the opening 201 is opened or closed according to whether the exhaust chamber R5 is used.

The operation of the air circulation system using the toilet and bathroom according to the second embodiment of the present invention configured as described above will be described as follows.

First, with reference to FIG. 9, the ventilation mode will be described as follows.

In the ventilation mode, when the values measured by the indoor pollution level measurement unit 91 and the indoor carbon dioxide concentration measurement unit 93 exceed a preset value, the control unit 400 determines that ventilation of the room is necessary and the It is a mode in which the air supply fan 17 and the exhaust fan 18 of the ventilation unit 10 are operated.

In the ventilation mode, the control unit 400 operates both the air supply fan 17 and the exhaust fan 18 , and opens the outside air introduction damper 84 .

Also, the control unit 400 controls the damper 81 for the ventilation mode to open the opening hole 41a for the ventilation mode.

Also, the control unit 400 controls the damper 82 for the indoor humidification mode to block the opening hole 43a for the indoor humidification mode.

Also, the controller 400 controls the damper 83 for the outdoor exhaust mode to block the opening hole 32a for the outdoor exhaust mode.

Accordingly, in the ventilation mode, the indoor air RA discharged from the rooms R is introduced into the ventilation unit 10 through the indoor exhaust port 13 .

The indoor air RA introduced into the ventilation unit 10 is supplied to the ventilation mode opening hole 41a, the indoor exhaust space S2, the total heat exchanger 20 and the ventilation mode inside the ventilation unit 10. After passing through the outdoor exhaust space ( S4 ) in turn, it is discharged to the outside through the outdoor exhaust port ( 15 ).

In addition, in the ventilation mode, outside air OA is introduced into the ventilation unit 10 through the outside air inlet 14 , and the outside air introduction duct 50 , the outside air inside the ventilation unit 10 . After passing through the introduction space S3, the first total heat exchanger sterilization lamp 71, the total heat exchanger 20, the second total heat exchanger sterilization lamp 72, and the indoor air supply space S1 in sequence, the indoor It is supplied into the room through the supply port (12).

At this time, in the total heat exchanger 20 , heat exchange between the outdoor air OA and the indoor air RA is performed.

In addition, the outdoor air (OA) is sterilized while passing through the first total heat exchanger sterilization lamp 71 and the second total heat exchanger sterilization lamp 72 installed at the front and rear ends of the total heat exchanger 20, respectively, and then It flows into the indoor air supply space (S1).

Also, the outside air may be purified while passing through the filter module 60 .

In addition, in the ventilation mode, the control unit 400 operates the indoor air inlet sterilization lamp 73 and the indoor exhaust sterilization lamp 74, but the first total heat exchanger sterilization lamp 71 and the second electric heat It will be described as an example of stopping the operation of the exchanger sterilization lamp 72 . That is, if it is determined that there is no need to sterilize the outside air in the ventilation mode, the operation of the first total heat exchanger sterilization lamp 71 and the second total heat exchanger sterilization lamp 72 may be stopped. However, the present invention is not limited thereto, and the indoor air inlet sterilizing lamp 73 and the indoor exhaust sterilizing lamp 74 may of course be operated.

Meanwhile, while performing the ventilation mode, in the total heat exchanger 20, heat exchange between the outdoor air OA and the indoor air RA, which have different temperatures and humidity, is performed, so that on the surface of the total heat exchanger 20, Condensation may occur. In particular, while the temperature and humidity of the outdoor air OA are low in winter, the indoor air RA is introduced from the toilet and bathroom so that the temperature and humidity are very high. Therefore, when the ventilation mode is performed in winter, the rate of occurrence of dew condensation is greatly increased.

Accordingly, the control unit 400 removes the dew condensation of the total heat exchanger 20 and performs an indoor humidification mode for humidifying a dry indoor every preset time or at a preset time interval.

10 is a view showing an operating state of the air circulation system in the indoor humidification mode according to the second embodiment of the present invention.

Referring to FIG. 10 , the indoor humidification mode will be described as follows.

The indoor humidification mode is an operation mode in which the indoor air (RA) is circulated without introducing outside air (OA) to prevent dew condensation in the total heat exchanger and to humidify the room.

When the execution time of the ventilation mode elapses the preset maximum ventilation time, the control unit 400 may switch the ventilation mode to the indoor humidification mode and perform the indoor humidification mode for a preset minimum indoor humidification time. . Here, the maximum ventilation time, the time before the occurrence of dew condensation in the total heat exchanger 20 or a time in consideration of the rate of occurrence of dew condensation, and the like, may be preset through an experiment or the like.

In addition, the control unit 400 may perform the indoor humidification mode for the minimum indoor humidification time even while the operation of the ventilation unit 10 is stopped.

In the indoor humidification mode, the control unit 400 operates the air supply fan 17 and stops the exhaust fan 18 .

In addition, the control unit 400 shields the outside air introduction damper 84 .

In addition, the control unit 400 controls the damper 81 for the ventilation mode to block the opening hole 41a for the ventilation mode.

Also, the controller 400 controls the damper 82 for the indoor humidification mode to open the opening hole 43a for the indoor humidification mode.

Also, the controller 400 controls the damper 83 for the outdoor exhaust mode to block the opening hole 32a for the outdoor exhaust mode.

In addition, the control unit 400 controls the first total heat exchanger sterilization lamp 71 , the second total heat exchanger sterilization lamp 72 , the indoor air inlet sterilization lamp 73 and the indoor exhaust sterilization lamp 74 . all work

Accordingly, in the indoor humidification mode, the indoor air RA discharged from the exhaust chamber R5 is introduced into the ventilation unit 10 through the indoor exhaust port 13 .

At this time, since both the indoor air inlet sterilizing lamp 73 and the indoor exhaust sterilizing lamp 74 are operated, the indoor air discharged from the exhaust chamber R5 can be sterilized.

The indoor air (RA) introduced into the ventilation unit (10) is the inner duct (40), the opening hole (43a) for the indoor humidification mode, and the outdoor air introduction space (S3) inside the ventilation unit (10). , after passing through the first total heat exchanger sterilization lamp 71, the total heat exchanger 20, the second total heat exchanger sterilization lamp 72 and the indoor air supply space S1 in sequence, the indoor air supply port 12 supplied indoors through

That is, the indoor air RA introduced into the ventilation unit 10 does not flow into the indoor exhaust space S2 but bypasses the indoor exhaust space S2, so that the first After the bypass flow path B1 and the second bypass flow path B2 flow sequentially, the outside air is introduced into the outdoor air introduction space S3 through the opening hole 43a for the indoor humidification mode.

Accordingly, the indoor air RA passes through the total heat exchanger 20 in a direction from the outside air introduction space S3 toward the indoor air supply space S1.

At this time, since the temperature of the indoor air RA is higher than the temperature of the outdoor air OA in winter, the indoor air RA passes through the total heat exchanger 20 and the heat transfer is generated by the heat of the indoor air RA. It can be removed by evaporating the dew condensation generated in the exchanger (20).

In addition, since the air with increased humidity passing through the total heat exchanger 20 is supplied to the room, the supply air SA supplied to the room can sufficiently humidify the dry room.

At this time, the indoor air RA is first sterilized while passing through the indoor exhaust sterilization lamp 74 installed in the indoor exhaust port 13 , and then flows into the ventilation unit 10 .

In addition, the indoor air (RA) passes through the first total heat exchanger sterilization lamp 71 and the second total heat exchanger sterilization lamp 72 installed at the front and rear ends of the total heat exchanger 20, respectively. Tea can be sterilized.

In addition, the indoor air (RA) passes through the HEPA filter 61 and the first and second pre-filters 62 installed at the front and rear ends of the total heat exchanger 20, such as odors, volatile organic compounds (VOCs), etc. By removing this, clean air can be supplied to the room.

In addition, the air that has passed through the total heat exchanger 20 can be sterilized fourth while passing through the indoor air inlet sterilization lamp 73 installed in the indoor air inlet 12 .

As described above, the control unit 400 performs the indoor humidification mode for a preset minimum indoor humidification time in the middle of performing the ventilation mode, so that the temperature difference between the outdoor air (OA) and the indoor air (RA) in the ventilation mode is controlled. As well as removing the dew condensation generated by the heat exchanger, it is possible to supply humidified air to the room while passing through the total heat exchanger.

In addition, when the humidified air is supplied to the room, since the first total heat exchanger sterilization lamp 71 and the second total heat exchanger sterilization lamp 72 pass through and supply after sterilization, clean air can be supplied.

Meanwhile, FIG. 11 is a view showing an operating state of the air circulation system in the outdoor exhaust mode according to the second embodiment of the present invention.

The outdoor exhaust mode will be described with reference to FIG. 11 as follows.

The outdoor exhaust mode is a bypass operation mode in which indoor air (RA) is directly discharged to the outdoors without introducing outside air (OA) without passing through the total heat exchanger (20).

In the outdoor exhaust mode, the controller 400 stops the air supply fan 17 and operates only the exhaust fan 18 .

In addition, the control unit 400 shields the outside air introduction damper 84 .

In addition, the control unit 400 controls the damper 81 for the ventilation mode to block the opening hole 41a for the ventilation mode.

Also, the control unit 400 controls the damper 82 for the indoor humidification mode to block the opening hole 43a for the indoor humidification mode.

Also, the controller 400 controls the damper 83 for the outdoor exhaust mode to open the opening hole 32a for the outdoor exhaust mode.

Accordingly, in the outdoor exhaust mode, the indoor air RA discharged from the rooms R is introduced into the ventilation unit 10 through the indoor exhaust port 13 .

The indoor air (RA) introduced into the ventilation unit (10) flows through the inner duct (40), the outdoor exhaust mode opening hole (32a), the outdoor exhaust space (S4), and the outdoor exhaust port (15). discharged outside.

That is, the indoor air RA flows along the first bypass flow path B1, the second bypass flow path B2, and the third bypass flow path B3, and thereafter, for the outdoor exhaust mode. After being discharged to the outdoor exhaust space S4 through the opening hole 32a, it is discharged to the outside through the outdoor exhaust port 15.

As described above, in the outdoor exhaust mode, since the indoor air RA with high humidity discharged from the exhaust chamber R5 is directly discharged to the outdoors without passing through the total heat exchanger 20, the indoor air RA ) can be prevented from weakening the durability of the total heat exchanger 20 due to high humidity. In addition, it is possible to prevent the formation of an environment for bacteria or fungi to grow on the surface of the total heat exchanger 20 .

On the other hand, if it is determined that ventilation of the room is not necessary according to the values measured by the indoor pollution level measurement unit 91 and the indoor carbon dioxide concentration measurement unit 93 , the control unit 400 controls the ventilation unit 10 . stop working.

While the operation of the ventilation unit 10 is stopped, the control unit 400 may perform the indoor humidification mode at preset time intervals.

In addition, while the operation of the ventilation unit 10 is stopped, the control unit 400 determines in real time whether the exhaust chamber R5 is in use, and when it is determined that the exhaust chamber R5 is in use, the outdoor exhaust mode can be performed.

Since the exhaust room R5 is a toilet or a bathroom, odor or humidity increases when it is in use, so exhaust is required regardless of whether other rooms in the room are ventilated.

Accordingly, by exhausting the air through the ventilation unit when using the toilet or bathroom, it is possible to replace the fan installed in the toilet or bathroom. That is, since there is no need to install a separate exhaust fan in the toilet or bathroom, the cost can be reduced.

Whether or not to use the exhaust room R5 can be determined depending on whether power is applied to the light of the exhaust room R5, and can also be determined depending on whether a occupant of the exhaust room R5 enters or exits the exhaust room R5. Do.

The control unit 400 may perform the outdoor exhaust mode when it is determined by the exhaust chamber use detection unit 310 that the exhaust chamber R5 is in use.

That is, when the control unit 400 determines that the exhaust room R5 is in use from the exhaust room use detection unit 310, the air supply fan 22 is stopped and the exhaust fan 18 is operated, The outdoor air introduction damper 84 is shielded, the ventilation mode damper 81 shields the ventilation mode opening hole 41a, and the indoor humidification mode damper 82 is the indoor humidification mode opening hole (43a) is shielded, and the damper 83 for the outdoor exhaust mode is controlled to open the opening hole 32a for the outdoor exhaust mode.

Accordingly, when the exhaust chamber R5 is in use, the outdoor air OA is not introduced and the indoor air RA is directly discharged to the outside without passing through the total heat exchanger 20 .

Thereafter, when it is determined that the use of the exhaust chamber R5 is terminated, the control unit 400 performs the outdoor exhaust mode for a preset time from the time when the use of the exhaust chamber R5 is terminated, When the set time elapses, the outdoor exhaust mode may be stopped. Accordingly, it is possible to sufficiently exhaust the indoor air of the exhaust chamber R5. However, the present invention is not limited thereto, and it is of course possible to stop the outdoor exhaust mode when the use of the exhaust chamber R5 is finished.

On the other hand, if it is determined that the emergency situation is an emergency situation from the information detected by the emergency situation detection unit 320 , the control unit 400 operates the exhaust fan 18 , and the opening and closing member 230 closes the opening 201 . control to open.

In addition, the control unit 400 controls the emergency valve 242 to open the emergency duct 240 .

Here, the emergency situation may include a case in which at least one of the indoor temperature and humidity measured by the indoor temperature-humidity measuring unit 75 exceeds a preset limit value as well as the occurrence of a fire.

When both the opening 201 and the emergency duct 240 are opened, some of the air in the first to fourth rooms R1 to R4 is sucked into the exhaust chamber R5 through the opening 201 and then exhausted, and the remainder may be exhausted through the emergency duct 240 .

Therefore, by evacuating only through the exhaust chamber R5 in normal times, not in emergency situations, and by opening and exhausting the emergency duct 240 only when an emergency situation occurs, it is possible to respond to an emergency situation even if the exhaust duct facility is minimized.

Meanwhile, FIG. 12 is a view showing an operating state of the air circulation system in the indoor humidification mode according to the third embodiment of the present invention. 13 is a view showing an operating state of the air circulation system in the outdoor exhaust mode according to the third embodiment of the present invention.

12 and 13 , the air circulation system according to the third embodiment of the present invention includes at least two or more exhaust chambers, so that the exhaust unit exhausts from the plurality of exhaust chambers to the ventilation unit, respectively. It is composed of an exhaust multi-branch unit 500 that is different from the second embodiment in that it is exhausted from the plurality of exhaust chambers to the ventilation unit 10, and the rest of the configuration and operation are similar, so the different points will be mainly described, and detailed descriptions of similar configurations and actions will be omitted.

That is, in the third embodiment of the present invention, the air supply unit is an air supply multi-branch unit that respectively supplies air from the ventilation unit 10 to a plurality of chambers R1 to R4, and the exhaust unit includes a plurality of exhaust chambers ( It is composed of an exhaust multi-branch unit exhausting from R5) (R6) to the ventilation unit (10).

In this embodiment, the room is divided into a plurality of rooms (R1 to R4), and the air supply multi-branch unit 100 to be described later is described as an example connected to the plurality of rooms (however, among the plurality of rooms) may be connected only to two or more), but not limited thereto, and when the room is a single room, the air supply multi-branch unit 100 is connected to a plurality of locations in the single room, and it is also possible to distribute and supply air to a plurality of locations. .

In addition, although the exhaust room R5 has been described as including at least one of a toilet and a bathroom, it is not limited thereto and may be set to a place where a large amount of moisture or odor is generated, such as a laundry room.

The exhaust chamber will be described as an example including two first and second exhaust chambers R5 and R6. The first and second exhaust chambers R5 and R6 will be described for example as toilets or bathrooms, respectively. However, the present invention is not limited thereto, and the number of the first and second exhaust chambers R5 and R6 may be variously changed, and the exhaust chamber may be set in a place where a large amount of odor or moisture is generated, such as a laundry room.

A first exhaust port 501 is formed in the first exhaust chamber R5 to introduce indoor air of the plurality of chambers R1 to R4, and at least some of the plurality of chambers are formed in the second exhaust chamber R6. A second exhaust port 502 is formed so that the indoor air of the rooms is introduced. Each of the first exhaust port 501 and the second exhaust port 502 may include an opening/closing member.

In this embodiment, the second exhaust port 502 is described as being formed to communicate with the third chamber R3 and the second exhaust chamber R6, but the present invention is not limited thereto and may be formed at another position. Of course it is possible.

The exhaust multi-branch unit 500 is a device for collecting indoor air exhausted from the first and second exhaust chambers R5 and R6, respectively, and exhausting the indoor air to the ventilation unit 10 .

Two first and second exhaust ducts 511 and 512 are branched and connected to one side of the exhaust multi-branch unit 500 , and a single third exhaust duct 513 is connected to the other side.

The first exhaust duct 511 is a duct connected to the first exhaust chamber R5 to exhaust indoor air from the first exhaust chamber R5.

The second exhaust duct 512 is a duct connected to the second exhaust chamber R6 to exhaust indoor air from the second exhaust chamber R6.

The third exhaust duct 513 is connected to the indoor exhaust port 13 of the ventilation unit 10 .

Dampers may be installed in the first, second, and third exhaust ducts 511, 512, and 513, respectively.

In addition, in the present embodiment, by including the two first and second exhaust chambers R5 and R6, the exhaust chamber use detection unit 310 is also installed for each exhaust chamber.

That is, the exhaust chamber use detection unit 310 includes a first exhaust chamber use detection unit (not shown) installed in the first exhaust chamber R5 and a second exhaust chamber installed in the second exhaust chamber R6. and a use detection unit (not shown).

Accordingly, when it is determined that at least one of the first and second exhaust chambers R5 and R6 is in use while the operation of the ventilation unit 10 is stopped, the control unit 400 performs the outdoor exhaust mode. do.

Referring to FIG. 12, the indoor humidification mode of the air circulation system according to the third embodiment of the present invention will be described as follows.

The indoor humidification mode is an operation mode in which the indoor air (RA) is circulated without introducing outside air (OA) to prevent dew condensation in the total heat exchanger and to humidify the room.

When the execution time of the ventilation mode elapses the preset maximum ventilation time, the control unit 400 may switch the ventilation mode to the indoor humidification mode and perform the indoor humidification mode for a preset minimum indoor humidification time. . Here, the maximum ventilation time, the time before the occurrence of dew condensation in the total heat exchanger 20 or a time in consideration of the rate of occurrence of dew condensation, and the like, may be preset through an experiment or the like.

In addition, the control unit 400 may perform the indoor humidification mode for the minimum indoor humidification time even while the operation of the ventilation unit 10 is stopped.

In the indoor humidification mode, the control unit 400 operates the air supply fan 17 and stops the exhaust fan 18 .

In addition, the control unit 400 shields the damper 81 for the ventilation mode, opens the damper 82 for the indoor humidification mode, and the outdoor air introduction damper 84 and the outdoor exhaust mode damper 83 ) is shielded.

In addition, the control unit 400 controls the first total heat exchanger sterilization lamp 71 , the second total heat exchanger sterilization lamp 72 , the indoor air inlet sterilization lamp 73 and the indoor exhaust sterilization lamp 74 . all work

Accordingly, in the indoor humidification mode, the indoor air RA discharged from the first and second exhaust chambers R5 and R6 passes through the exhaust multi-branch unit 500 and then passes through the indoor exhaust port 13 . It is introduced into the ventilation unit 10 through the.

At this time, since both the indoor air inlet sterilizing lamp 73 and the indoor exhaust sterilizing lamp 74 are operated, the indoor air discharged from the first and second exhaust chambers R5 and R6 can be sterilized.

The indoor air (RA) introduced into the ventilation unit (10) is the inner duct (40), the opening hole (43a) for the indoor humidification mode, and the outdoor air introduction space (S3) inside the ventilation unit (10). , after passing through the first total heat exchanger sterilization lamp 71, the total heat exchanger 20, the second total heat exchanger sterilization lamp 72 and the indoor air supply space S1 in sequence, the indoor air supply port 12 supplied indoors through

That is, the indoor air RA introduced into the ventilation unit 10 does not flow into the indoor exhaust space S2 but bypasses the indoor exhaust space S2, so that the first After the bypass flow path B1 and the second bypass flow path B2 flow sequentially, the outside air is introduced into the outside air introduction space S3.

Accordingly, the indoor air RA passes through the total heat exchanger 20 in a direction from the outside air introduction space S3 toward the indoor air supply space S1.

At this time, since the temperature of the indoor air RA is higher than the temperature of the outdoor air OA in winter, the indoor air RA passes through the total heat exchanger 20 and the heat transfer is generated by the heat of the indoor air RA. It can be removed by evaporating the dew condensation generated in the exchanger (20).

In addition, since the air with increased humidity passing through the total heat exchanger 20 is supplied to the room, the supply air SA supplied to the room can sufficiently humidify the dry room.

At this time, the indoor air RA is first sterilized while passing through the indoor exhaust sterilization lamp 74 installed in the indoor exhaust port 13 , and then flows into the ventilation unit 10 .

In addition, the indoor air (RA) passes through the first total heat exchanger sterilization lamp 71 and the second total heat exchanger sterilization lamp 72 installed at the front and rear ends of the total heat exchanger 20, respectively. Tea can be sterilized.

In addition, the indoor air (RA) passes through the HEPA filter 61 and the first and second pre-filters 62 installed at the front and rear ends of the total heat exchanger 20, such as odors, volatile organic compounds (VOCs), etc. By removing this, clean air can be supplied to the room.

In addition, the air that has passed through the total heat exchanger 20 may be sterilized fourth while passing through the indoor air inlet sterilization lamp 73 installed in the indoor air inlet 12 .

As described above, the control unit 400 performs the indoor humidification mode for a preset minimum indoor humidification time in the middle of performing the ventilation mode, so that the temperature difference between the outdoor air (OA) and the indoor air (RA) in the ventilation mode is controlled. As well as removing the dew condensation generated by the heat exchanger, it is possible to supply humidified air to the room while passing through the total heat exchanger.

In addition, when the humidified air is supplied to the room, since the first total heat exchanger sterilization lamp 71 and the second total heat exchanger sterilization lamp 72 pass through and supply after sterilization, clean air can be supplied.

Referring to FIG. 13, the outdoor exhaust mode of the air circulation system according to the third embodiment of the present invention will be described as follows.

The outdoor exhaust mode is a bypass operation mode in which indoor air (RA) is directly discharged to the outdoors without introducing outside air (OA) without passing through the total heat exchanger (20).

In the outdoor exhaust mode, the controller 400 stops the air supply fan 17 and operates only the exhaust fan 18 .

In addition, the control unit 400 shields the outdoor air introduction damper 84 , the ventilation mode damper 81 , and the indoor humidification mode damper 82 , and the outdoor exhaust mode damper 83 is opened. make it

Accordingly, in the outdoor exhaust mode, the indoor air RA discharged from the first and second exhaust chambers R5 and R6 is introduced into the ventilation unit 10 through the indoor exhaust port 13 .

The indoor air (RA) introduced into the ventilation unit (10) flows through the inner duct (40), the outdoor exhaust mode opening hole (32a), the outdoor exhaust space (S4), and the outdoor exhaust port (15). discharged outside.

That is, the indoor air RA flows along the first bypass flow path B1, the second bypass flow path B2, and the third bypass flow path B3, and thereafter, for the outdoor exhaust mode. After being discharged to the outdoor exhaust space S4 through the opening hole 32a, it is discharged to the outside through the outdoor exhaust port 15.

As described above, in the outdoor exhaust mode, the high-humidity indoor air RA discharged from the first and second exhaust chambers R5 and R6 is directly discharged to the outdoors without passing through the total heat exchanger 20 . Therefore, it can be prevented that the durability of the total heat exchanger 20 is weakened due to the high humidity of the indoor air (RA). In addition, it is possible to prevent the formation of an environment for bacteria or fungi to grow on the surface of the total heat exchanger 20 .

On the other hand, if it is determined that ventilation of the room is not necessary according to the values measured by the indoor pollution level measurement unit 91 and the indoor carbon dioxide concentration measurement unit 93 , the control unit 400 controls the ventilation unit 10 . stop working.

While the operation of the ventilation unit 10 is stopped, the control unit 400 may perform the indoor humidification mode at preset time intervals.

In addition, while the operation of the ventilation unit 10 is stopped, the control unit 400 determines in real time whether to use the first and second exhaust chambers R5 and R6, and the first and second exhaust When it is determined that at least one of the seals R5 and R6 is in use, the outdoor exhaust mode may be performed.

Since the first and second exhaust rooms R5 and R6 are toilets or bathrooms, odors and humidity increase when they are in use, and therefore, exhaust is required regardless of whether other rooms in the room are ventilated.

Whether to use the first and second exhaust chambers R5 and R6 may be determined according to whether power is applied to the lamps of the first and second exhaust chambers R5 and R6, It is also possible to determine according to whether the occupants of the first and second exhaust chambers (R5) and (R6) enter.

The controller 400 may perform the outdoor exhaust mode when at least one of the first and second exhaust chambers R5 and R6 is in use from the exhaust chamber use detection unit 310 .

Thereafter, when it is determined that the use of the first and second exhaust chambers R5 and R6 is finished, the control unit 400 terminates the use of all of the first and second exhaust chambers R5 and R6. After performing the outdoor exhaust mode for a preset time from a time point, the outdoor exhaust mode may be stopped when the preset time elapses.

Therefore, even after the use of the exhaust chamber R5 is completely exhausted, the indoor air of the exhaust chamber R5 can be sufficiently exhausted by exhausting for the set time. However, the present invention is not limited thereto, and the exhaust chamber ( Of course, it is also possible to stop the outdoor exhaust mode when the use of R5 is finished.

On the other hand, if it is determined that the emergency situation is an emergency situation from the information detected by the emergency situation detection unit 320 , the control unit 400 operates the exhaust fan 18 , and the opening and closing member 230 closes the opening 201 . control to open.

In addition, the control unit 400 controls the emergency valve 242 to open the emergency duct 240 .

Here, the emergency situation may include a case in which at least one of the indoor temperature and humidity measured by the indoor temperature-humidity measuring unit 75 exceeds a preset limit value as well as the occurrence of a fire.

When both the opening 201 and the emergency duct 240 are opened, some of the air in the first to fourth rooms R1 to R4 passes through the opening 201 to the first and second exhaust chambers R5. ) (R6) and then exhausted, the rest may be exhausted through the emergency duct (240).

Therefore, in normal times other than emergency situations, the exhaust is exhausted only through the first and second exhaust chambers R5 and R6, and the emergency duct 240 is opened and exhausted only when an emergency situation occurs, so that even if the exhaust duct facility is minimized, emergency able to respond to the situation.

Meanwhile, FIG. 14 is a view showing an operating state of the air circulation system in the indoor humidification mode according to the fourth embodiment of the present invention. 15 is a view showing an operating state of the air circulation system in the outdoor exhaust mode according to the fourth embodiment of the present invention.

14 and 15, in the air circulation system according to the fourth embodiment of the present invention, one supply air chamber (R4) among the plurality of chambers (R1 to R4), and at least two exhaust chambers. It is different from the second embodiment in that the supply air is made in only one air supply chamber R4 among the plurality of chambers R1 to R4, and the exhaust is made in a plurality of exhaust chambers R5 and R6, Since the rest of the configurations and actions are similar, different points will be mainly described, and detailed descriptions of similar configurations and actions will be omitted.

That is, the air supply unit 600 is a single air supply unit configured to supply air from the ventilation unit 10 to only one air supply chamber R4 among the plurality of rooms R1 to R4, and the exhaust unit 500 is at least and an exhaust multi-branch unit 500 that exhausts from two or more exhaust chambers R5 and R6 to the ventilation unit.

In this embodiment, the room is divided into a plurality of rooms (R1 to R4), and the air supply unit 600 is described as a single air supply unit connected to any one of the plurality of rooms, but is not limited thereto. Since the room is configured in a single room, it is of course possible that the air supply unit 600 is connected to the single room.

In addition, although the exhaust room R5 has been described as including at least one of a toilet and a bathroom, it is not limited thereto and may be set to a place where a large amount of moisture or odor is generated, such as a laundry room.

The air supply unit 600 is an air supply duct connecting the air supply chamber R4 and the indoor air supply port 12 of the ventilation unit 10 . A damper may be installed in the air supply duct.

The exhaust chamber will be described as an example including two first and second exhaust chambers R5 and R6. The first and second exhaust chambers R5 and R6 will be described for example as toilets or bathrooms, respectively. However, the present invention is not limited thereto, and the number of the first and second exhaust chambers R5 and R6 may be variously changed, and the exhaust chamber may be set in a place where a large amount of odor or moisture is generated, such as a laundry room.

A first exhaust port 501 is formed in the first exhaust room R5 to introduce indoor air of the plurality of rooms, and the indoor air of at least some of the plurality of rooms is provided in the second exhaust room R6. A second exhaust port 502 is formed to flow in. Each of the first exhaust port 501 and the second exhaust port 502 may include an opening/closing member.

In this embodiment, the second exhaust port 502 is described as being formed to communicate with the third chamber R3 and the second exhaust chamber R6, but the present invention is not limited thereto and may be formed at another position. Of course it is possible.

The exhaust multi-branch unit 500 is a device for collecting indoor air exhausted from the first and second exhaust chambers R5 and R6, respectively, and exhausting the indoor air to the ventilation unit 10 .

Two first and second exhaust ducts 511 and 512 are branched and connected to one side of the exhaust multi-branch unit 500 , and a single third exhaust duct 513 is connected to the other side.

The first exhaust duct 511 is a duct connected to the first exhaust chamber R5 to exhaust indoor air from the first exhaust chamber R5.

The second exhaust duct 512 is a duct connected to the second exhaust chamber R6 to exhaust indoor air from the second exhaust chamber R6.

The third exhaust duct 513 is connected to the indoor exhaust port 13 of the ventilation unit 10 .

Dampers may be installed in the first, second, and third exhaust ducts 511, 512, and 513, respectively.

In addition, in the present embodiment, by including the two first and second exhaust chambers R5 and R6, the exhaust chamber use detection unit 310 is also installed for each exhaust chamber.

That is, the exhaust chamber use detection unit 310 includes a first exhaust chamber use detection unit (not shown) installed in the first exhaust chamber R5 and a second exhaust chamber installed in the second exhaust chamber R6. and a use detection unit (not shown).

Accordingly, when it is determined that at least one of the first and second exhaust chambers R5 and R6 is in use while the operation of the ventilation unit 10 is stopped, the control unit 400 performs the outdoor exhaust mode. do.

Referring to FIG. 14 , the indoor humidification mode of the air circulation system according to the fourth embodiment of the present invention will be described as follows.

The indoor humidification mode is an operation mode in which the indoor air (RA) is circulated without introducing outside air (OA) to prevent dew condensation in the total heat exchanger and to humidify the room.

When the execution time of the ventilation mode elapses the preset maximum ventilation time, the control unit 400 may switch the ventilation mode to the indoor humidification mode and perform the indoor humidification mode for a preset minimum indoor humidification time. . Here, the maximum ventilation time, the time before the occurrence of dew condensation in the total heat exchanger 20 or a time in consideration of the rate of occurrence of dew condensation, and the like, may be preset through an experiment or the like.

In addition, the control unit 400 may perform the indoor humidification mode for the minimum indoor humidification time even while the operation of the ventilation unit 10 is stopped.

In the indoor humidification mode, the control unit 400 operates the air supply fan 17 and stops the exhaust fan 18 .

In addition, the control unit 400 shields the damper 81 for the ventilation mode, opens the damper 82 for the indoor humidification mode, and the outdoor air introduction damper 84 and the outdoor exhaust mode damper 83 ) is shielded.

In addition, the control unit 400 controls the first total heat exchanger sterilization lamp 71 , the second total heat exchanger sterilization lamp 72 , the indoor air inlet sterilization lamp 73 and the indoor exhaust sterilization lamp 74 . all work

Accordingly, in the indoor humidification mode, the indoor air RA discharged from the first and second exhaust chambers R5 and R6 passes through the exhaust multi-branch unit 500 and then passes through the indoor exhaust port 13 . It is introduced into the ventilation unit 10 through the.

At this time, since both the indoor air inlet sterilizing lamp 73 and the indoor exhaust sterilizing lamp 74 are operated, the indoor air discharged from the first and second exhaust chambers R5 and R6 can be sterilized.

The indoor air (RA) introduced into the ventilation unit (10) is the inner duct (40), the opening hole (43a) for the indoor humidification mode, and the outdoor air introduction space (S3) inside the ventilation unit (10). , after passing through the first total heat exchanger sterilization lamp 71, the total heat exchanger 20, the second total heat exchanger sterilization lamp 72 and the indoor air supply space S1 in sequence, the indoor air supply port 12 supplied indoors through

That is, the indoor air RA introduced into the ventilation unit 10 does not flow into the indoor exhaust space S2 but bypasses the indoor exhaust space S2, so that the first After the bypass flow path B1 and the second bypass flow path B2 flow sequentially, the outside air is introduced into the outside air introduction space S3.

Accordingly, the indoor air RA passes through the total heat exchanger 20 in a direction from the outside air introduction space S3 toward the indoor air supply space S1.

At this time, since the temperature of the indoor air RA is higher than the temperature of the outdoor air OA in winter, the indoor air RA passes through the total heat exchanger 20 and the heat transfer is generated by the heat of the indoor air RA. It can be removed by evaporating the dew condensation generated in the exchanger (20).

In addition, since the air with increased humidity passing through the total heat exchanger 20 is supplied to the room, the supply air SA supplied to the room can sufficiently humidify the dry room.

At this time, the indoor air RA is first sterilized while passing through the indoor exhaust sterilization lamp 74 installed in the indoor exhaust port 13 , and then flows into the ventilation unit 10 .

In addition, the indoor air (RA) passes through the first total heat exchanger sterilization lamp 71 and the second total heat exchanger sterilization lamp 72 installed at the front and rear ends of the total heat exchanger 20, respectively. Tea can be sterilized.

In addition, the indoor air (RA) passes through the HEPA filter 61 and the first and second pre-filters 62 installed at the front and rear ends of the total heat exchanger 20, such as odors, volatile organic compounds (VOCs), etc. By removing this, clean air can be supplied to the room.

In addition, the air that has passed through the total heat exchanger 20 may be sterilized fourth while passing through the indoor air inlet sterilization lamp 73 installed in the indoor air inlet 12 .

As described above, the control unit 400 performs the indoor humidification mode for a preset minimum indoor humidification time in the middle of performing the ventilation mode, so that the temperature difference between the outdoor air (OA) and the indoor air (RA) in the ventilation mode is controlled. As well as removing the dew condensation generated by the heat exchanger, it is possible to supply humidified air to the room while passing through the total heat exchanger.

In addition, when the humidified air is supplied to the room, since the first total heat exchanger sterilization lamp 71 and the second total heat exchanger sterilization lamp 72 pass through and supply after sterilization, clean air can be supplied.

Referring to FIG. 15, the outdoor exhaust mode of the air circulation system according to the fifth embodiment of the present invention will be described as follows.

The outdoor exhaust mode is a bypass operation mode in which indoor air (RA) is directly discharged to the outdoors without introducing outside air (OA) without passing through the total heat exchanger (20).

In the outdoor exhaust mode, the controller 400 stops the air supply fan 17 and operates only the exhaust fan 18 .

In addition, the control unit 400 shields the outdoor air introduction damper 84 , the ventilation mode damper 81 , and the indoor humidification mode damper 82 , and the outdoor exhaust mode damper 83 is opened. make it

Accordingly, in the outdoor exhaust mode, the indoor air RA discharged from the first and second exhaust chambers R5 and R6 is introduced into the ventilation unit 10 through the indoor exhaust port 13 .

The indoor air (RA) introduced into the ventilation unit (10) flows through the inner duct (40), the outdoor exhaust mode opening hole (32a), the outdoor exhaust space (S4), and the outdoor exhaust port (15). discharged outside.

That is, the indoor air RA flows along the first bypass flow path B1, the second bypass flow path B2, and the third bypass flow path B3, and thereafter, for the outdoor exhaust mode. After being discharged to the outdoor exhaust space S4 through the opening hole 32a, it is discharged to the outside through the outdoor exhaust port 15.

As described above, in the outdoor exhaust mode, the high-humidity indoor air RA discharged from the first and second exhaust chambers R5 and R6 is directly discharged to the outdoors without passing through the total heat exchanger 20 . Therefore, it can be prevented that the durability of the total heat exchanger 20 is weakened due to the high humidity of the indoor air (RA). In addition, it is possible to prevent the formation of an environment for bacteria or fungi to grow on the surface of the total heat exchanger 20 .

On the other hand, if it is determined that ventilation of the room is not necessary according to the values measured by the indoor pollution level measurement unit 91 and the indoor carbon dioxide concentration measurement unit 93 , the control unit 400 controls the ventilation unit 10 . stop working.

While the operation of the ventilation unit 10 is stopped, the control unit 400 may perform the indoor humidification mode at preset time intervals.

In addition, while the operation of the ventilation unit 10 is stopped, the control unit 400 determines in real time whether to use the first and second exhaust chambers R5 and R6, and the first and second exhaust When it is determined that at least one of the seals R5 and R6 is in use, the outdoor exhaust mode may be performed.

Since the first and second exhaust rooms R5 and R6 are toilets or bathrooms, odors and humidity increase when they are in use, and therefore, exhaust is required regardless of whether other rooms in the room are ventilated.

Whether to use the first and second exhaust chambers R5 and R6 may be determined according to whether power is applied to the lamps of the first and second exhaust chambers R5 and R6, It is also possible to determine according to whether the occupants of the first and second exhaust chambers (R5) and (R6) enter.

The controller 400 may perform the outdoor exhaust mode when at least one of the first and second exhaust chambers R5 and R6 is in use from the exhaust chamber use detection unit 310 .

Thereafter, when it is determined that the use of the first and second exhaust chambers R5 and R6 is finished, the control unit 400 terminates the use of all of the first and second exhaust chambers R5 and R6. After performing the outdoor exhaust mode for a preset time from a time point, the outdoor exhaust mode may be stopped when the preset time elapses. Accordingly, it is possible to sufficiently exhaust the indoor air of the first and second exhaust chambers R5 and R6. However, the present invention is not limited thereto, and it is of course possible to stop the outdoor exhaust mode when the use of the first and second exhaust chambers R5 and R6 is finished.

On the other hand, if it is determined that the emergency situation is an emergency situation from the information detected by the emergency situation detection unit 320 , the control unit 400 operates the exhaust fan 18 , and the opening and closing member 230 closes the opening 201 . control to open.

In addition, the control unit 400 controls the emergency valve 242 to open the emergency duct 240 .

Here, the emergency situation may include a case in which at least one of the indoor temperature and humidity measured by the indoor temperature-humidity measuring unit 75 exceeds a preset limit value as well as the occurrence of a fire.

When both the opening 201 and the emergency duct 240 are opened, some of the air in the first to fourth rooms R1 to R4 passes through the opening 201 to the first and second exhaust chambers R5. ) (R6) and then exhausted, the rest may be exhausted through the emergency duct (240).

Therefore, in normal times other than emergency situations, the exhaust is exhausted only through the first and second exhaust chambers R5 and R6, and the emergency duct 240 is opened and exhausted only when an emergency situation occurs, so that even if the exhaust duct facility is minimized, emergency able to respond to the situation.

Although the present invention has been described with reference to the embodiments shown in the drawings, which are merely exemplary, those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom. Accordingly, the true technical protection scope of the present invention should be determined by the technical spirit of the appended claims.

10: ventilation unit 11: housing
20: total heat exchanger 31: first bulkhead
32: second bulkhead 33: third bulkhead
34: fourth bulkhead 40: inner duct
41: first inner bulkhead 41a: opening hole for ventilation mode
42: second inner bulkhead 42a: opening hole for indoor humidification mode
43: third inner bulkhead 43a: opening hole for outdoor exhaust mode
50: outside air introduction duct
60: filter module 61: hepa filter
62: first pre-filter 63: carbon filter
64: second pre-filter 70: sterilization module
71: first total heat exchanger sterilization lamp 72: second total heat exchanger sterilization lamp
73: indoor air inlet sterilization lamp 74: indoor exhaust sterilization lamp
81: damper for ventilation mode 82: damper for indoor humidification mode
83: damper for outdoor exhaust mode 84: outdoor air intake damper
100: supply air multi-branch unit 200: exhaust unit
500: exhaust multi-branch unit 600: air supply unit

Claims (12)

As an air circulation system for a room formed by a single room or a plurality of rooms being partitioned except for a toilet and a bathroom,
a ventilation unit having an outdoor air inlet, an indoor air inlet, an indoor exhaust and an outdoor exhaust, the air supply fan and the exhaust fan being provided to ventilate indoor air;
One end is connected to the indoor air supply port of the ventilation unit, and the other end is connected to a plurality of the single chamber or to a plurality of the plurality of chambers, respectively, to distribute the air from the ventilation unit to the connected chamber and supply air a multi-branch unit;
One side is connected to the indoor exhaust port of the ventilation unit, and the other side is connected to an exhaust room including at least one of a toilet and a bathroom in the room, so that, when the exhaust fan is operated, the indoor air of the plurality of rooms flows into the exhaust room an exhaust unit guiding to be exhausted through the ventilation unit after being introduced into the exhaust chamber through an opening formed in the ventilator;
A control unit for controlling the operation of the ventilation unit according to an operation mode including a ventilation mode in which outdoor air is introduced to exchange heat between outdoor air and indoor air, and an indoor humidification mode in which the indoor air is humidified by circulating indoor air without introducing outdoor air. and,
The ventilation unit is
a housing in which the indoor air supply port and the indoor exhaust port are formed to be spaced apart from each other by a predetermined distance on the front surface, and the outdoor air inlet and the outdoor exhaust port are formed to be spaced apart from each other by a predetermined distance on the rear surface;
a total heat exchanger which is disposed at an angle in the inner center of the housing to exchange heat between outdoor air and indoor air;
A first partition wall provided between the front surface of the housing and the total heat exchanger to divide the space on the front side of the housing into an indoor air supply space communicating with the indoor air supply port and an indoor exhaust space through which the indoor air discharged from the room is introduced. and,
a second partition wall provided between the rear surface of the housing and the total heat exchanger to divide the space on the rear side of the housing into an outdoor air introduction space communicating with the outdoor air inlet and an outdoor exhaust space communicating with the outdoor exhaust port;
a third partition wall provided between the left side of the housing and the total heat exchanger to partition the left space of the housing into the indoor exhaust space and the outdoor air introduction space;
a fourth partition wall provided between the right side of the housing and the total heat exchanger to partition the right space of the housing into the indoor exhaust space and the outdoor exhaust space;
an inner duct provided inside the housing to guide indoor air introduced through the indoor exhaust port into one of the outdoor air introduction space and the outdoor exhaust space;
and an outside air introduction duct formed to connect the outside air introduction port and the outside air introduction space,
The inner duct,
a first inner barrier rib vertically connected to the first barrier rib in the indoor exhaust space and disposed parallel to the front surface of the housing to form a first bypass flow path between the front surface of the housing;
A second bypass flow path connected to the end of the first inner partition wall and disposed parallel to the left side of the housing and passing through the indoor exhaust space and the outside air introduction space is formed between the left side of the housing. a second inner bulkhead to form;
a third inner barrier rib connecting an end of the second inner barrier rib and the third barrier rib and disposed parallel to the rear surface of the housing to form a third bypass flow path between the rear surface of the housing;
an opening hole formed in the first inner partition wall for guiding indoor air introduced through the indoor exhaust port to the indoor exhaust space;
a damper for ventilation mode installed in the opening hole for ventilation mode to open the opening hole for ventilation mode in the ventilation mode;
an opening hole for an indoor humidification mode formed in the second inner partition wall for guiding indoor air introduced into the inner duct to the outdoor air introduction space;
and a damper for indoor humidification mode installed in the opening hole for the indoor humidification mode to open the opening hole for the indoor humidification mode in the indoor humidification mode;
The control unit is
When the execution time of the ventilation mode elapses the preset maximum ventilation time, the ventilation mode is switched to the indoor humidification mode,
In the indoor humidification mode, the air supply fan is operated, the exhaust fan is stopped, the damper for the ventilation mode is controlled to block the opening hole for the ventilation mode, and the damper for the indoor humidification mode is set to the indoor humidification mode Control to open the opening hole for
The indoor air introduced into the ventilation unit through the indoor exhaust port sequentially passes through the first and second bypass passages of the inner duct, and then flows into the outdoor air introduction space through the indoor humidification mode opening hole, and the outdoor air An air circulation system using a toilet and bathroom exhaust to be supplied to a room through the indoor air supply space and the indoor air supply port after passing through the total heat exchanger in a direction from an introduction space to the indoor air supply space. As an air circulation system for a room formed by a single room or a plurality of rooms being partitioned except for a toilet and a bathroom,
a ventilation unit having an outdoor air inlet, an indoor air inlet, an indoor exhaust and an outdoor exhaust, the air supply fan and the exhaust fan being provided to ventilate indoor air;
One end is connected to the indoor air supply port of the ventilation unit, and the other end is connected to a plurality of the single chamber or to a plurality of the plurality of chambers, respectively, to distribute the air from the ventilation unit to the connected chamber and supply air a multi-branch unit;
One end is connected to the indoor exhaust port of the ventilation unit, and the other end is connected to a plurality of exhaust rooms including at least one of a toilet and a bathroom in the room, respectively, so that when the exhaust fan operates, the indoor air of the plurality of rooms an exhaust multi-branch unit for guiding the exhaust gas to be exhausted from the plurality of exhaust chambers to the ventilation unit after being introduced into the plurality of exhaust chambers through openings respectively formed in the plurality of exhaust chambers;
A control unit for controlling the operation of the ventilation unit according to an operation mode including a ventilation mode in which outdoor air is introduced to exchange heat between outdoor air and indoor air, and an indoor humidification mode in which the indoor air is humidified by circulating indoor air without introducing outdoor air. and,
The ventilation unit is
a housing in which the indoor air supply port and the indoor exhaust port are formed to be spaced apart from each other by a predetermined distance on the front surface, and the outdoor air inlet and the outdoor exhaust port are formed to be spaced apart from each other by a predetermined distance on the rear surface;
a total heat exchanger which is disposed at an angle in the inner center of the housing to exchange heat between outdoor air and indoor air;
A first partition wall provided between the front surface of the housing and the total heat exchanger to divide the space on the front side of the housing into an indoor air supply space communicating with the indoor air supply port and an indoor exhaust space through which the indoor air discharged from the room is introduced. and,
a second partition wall provided between the rear surface of the housing and the total heat exchanger to divide the space on the rear side of the housing into an outdoor air introduction space communicating with the outdoor air inlet and an outdoor exhaust space communicating with the outdoor exhaust port;
a third partition wall provided between the left side surface of the housing and the total heat exchanger to partition the left space of the housing into the indoor exhaust space and the outdoor air introduction space;
a fourth partition wall provided between the right side of the housing and the total heat exchanger to partition the right space of the housing into the indoor exhaust space and the outdoor exhaust space;
an inner duct provided inside the housing to guide indoor air introduced through the indoor exhaust port into one of the outdoor air introduction space and the outdoor exhaust space;
and an outside air introduction duct formed to connect the outside air introduction port and the outside air introduction space,
The inner duct,
a first inner barrier rib vertically connected to the first barrier rib in the indoor exhaust space and disposed parallel to the front surface of the housing to form a first bypass flow path between the front surface of the housing;
A second bypass flow path connected to the end of the first inner partition wall and disposed parallel to the left side of the housing and passing through the indoor exhaust space and the outside air introduction space is formed between the left side of the housing. a second inner bulkhead to form;
a third inner barrier rib connecting an end of the second inner barrier rib and the third barrier rib and disposed parallel to the rear surface of the housing to form a third bypass flow path between the rear surface of the housing;
an opening hole formed in the first inner partition wall for guiding indoor air introduced through the indoor exhaust port to the indoor exhaust space;
a damper for ventilation mode installed in the opening hole for ventilation mode to open the opening hole for ventilation mode in the ventilation mode;
an opening hole for an indoor humidification mode formed in the second inner partition wall for guiding indoor air introduced into the inner duct to the outdoor air introduction space;
and a damper for indoor humidification mode installed in the opening hole for the indoor humidification mode to open the opening hole for the indoor humidification mode in the indoor humidification mode;
The control unit is
When the execution time of the ventilation mode elapses the preset maximum ventilation time, the ventilation mode is switched to the indoor humidification mode,
In the indoor humidification mode, the air supply fan is operated, the exhaust fan is stopped, the damper for the ventilation mode is controlled to block the opening hole for the ventilation mode, and the damper for the indoor humidification mode is set to the indoor humidification mode Control to open the opening hole for
The indoor air introduced into the ventilation unit through the indoor exhaust port sequentially passes through the first and second bypass passages of the inner duct, and then flows into the outdoor air introduction space through the indoor humidification mode opening hole, and the outdoor air An air circulation system using a toilet and bathroom exhaust to be supplied to a room through the indoor air supply space and the indoor air supply port after passing through the total heat exchanger in a direction from an introduction space to the indoor air supply space. As an air circulation system for a room formed by a single room or a plurality of rooms being partitioned except for a toilet and a bathroom,
a ventilation unit having an outdoor air inlet, an indoor air inlet, an indoor exhaust and an outdoor exhaust, the air supply fan and the exhaust fan being provided to ventilate indoor air;
an air supply unit having one end connected to the indoor air supply port of the ventilation unit and the other end connected to any one of the chambers of the room to supply air from the ventilation unit to the connected chamber;
One side is connected to the indoor exhaust port of the ventilation unit, and the other side is connected to an exhaust room including at least one of a toilet and a bathroom in the room, so that, when the exhaust fan is operated, the indoor air of the plurality of rooms flows into the exhaust room an exhaust unit guiding to be exhausted through the ventilation unit after being introduced into the exhaust chamber through an opening formed in the ventilator;
A control unit for controlling the operation of the ventilation unit according to an operation mode including a ventilation mode in which outdoor air is introduced to exchange heat between outdoor air and indoor air, and an indoor humidification mode in which the indoor air is humidified by circulating indoor air without introducing outdoor air. and,
The ventilation unit is
a housing in which the indoor air supply port and the indoor exhaust port are formed to be spaced apart from each other by a predetermined distance on the front surface, and the outdoor air inlet and the outdoor exhaust port are formed to be spaced apart from each other by a predetermined distance on the rear surface;
a total heat exchanger which is disposed at an angle in the inner center of the housing to exchange heat between outdoor air and indoor air;
A first partition wall provided between the front surface of the housing and the total heat exchanger to divide the space on the front side of the housing into an indoor air supply space communicating with the indoor air supply port and an indoor exhaust space through which the indoor air discharged from the room is introduced. and,
a second partition wall provided between the rear surface of the housing and the total heat exchanger to divide the space on the rear side of the housing into an outdoor air introduction space communicating with the outdoor air inlet and an outdoor exhaust space communicating with the outdoor exhaust port;
a third partition wall provided between the left side of the housing and the total heat exchanger to partition the left space of the housing into the indoor exhaust space and the outdoor air introduction space;
a fourth partition wall provided between the right side of the housing and the total heat exchanger to partition the right space of the housing into the indoor exhaust space and the outdoor exhaust space;
an inner duct provided inside the housing to guide indoor air introduced through the indoor exhaust port into one of the outdoor air introduction space and the outdoor exhaust space;
and an outside air introduction duct formed to connect the outside air introduction port and the outside air introduction space,
The inner duct,
a first inner barrier rib vertically connected to the first barrier rib in the indoor exhaust space and disposed parallel to the front surface of the housing to form a first bypass flow path between the front surface of the housing;
A second bypass flow path connected to the end of the first inner partition wall and disposed parallel to the left side of the housing and passing through the indoor exhaust space and the outside air introduction space is formed between the left side of the housing. a second inner bulkhead to form;
a third inner barrier rib connecting an end of the second inner barrier rib and the third barrier rib and disposed parallel to the rear surface of the housing to form a third bypass flow path between the rear surface of the housing;
an opening hole formed in the first inner partition wall for guiding indoor air introduced through the indoor exhaust port to the indoor exhaust space;
a damper for ventilation mode installed in the opening hole for ventilation mode to open the opening hole for ventilation mode in the ventilation mode;
an opening hole for an indoor humidification mode formed in the second inner partition wall for guiding indoor air introduced into the inner duct to the outdoor air introduction space;
and a damper for indoor humidification mode installed in the opening hole for the indoor humidification mode to open the opening hole for the indoor humidification mode in the indoor humidification mode;
The control unit is
When the execution time of the ventilation mode elapses the preset maximum ventilation time, the ventilation mode is switched to the indoor humidification mode,
In the indoor humidification mode, the air supply fan is operated, the exhaust fan is stopped, the damper for the ventilation mode is controlled to block the opening hole for the ventilation mode, and the damper for the indoor humidification mode is set to the indoor humidification mode Control to open the opening hole for
The indoor air introduced into the ventilation unit through the indoor exhaust port sequentially passes through the first and second bypass passages of the inner duct, and then flows into the outdoor air introduction space through the indoor humidification mode opening hole, and the outdoor air An air circulation system using a toilet and bathroom exhaust to be supplied to a room through the indoor air supply space and the indoor air supply port after passing through the total heat exchanger in a direction from an introduction space to the indoor air supply space. As an air circulation system for a room formed by a single room or a plurality of rooms being partitioned except for a toilet and a bathroom,
a ventilation unit having an outdoor air inlet, an indoor air inlet, an indoor exhaust and an outdoor exhaust, the air supply fan and the exhaust fan being provided to ventilate indoor air;
an air supply unit having one end connected to the indoor air supply port of the ventilation unit and the other end connected to any one of the chambers of the room to supply air from the ventilation unit to the connected chamber;
One end is connected to the indoor exhaust port of the ventilation unit, and the other end is connected to a plurality of exhaust rooms including at least one of a toilet and a bathroom in the room, respectively, so that when the exhaust fan operates, the indoor air of the plurality of rooms an exhaust multi-branch unit for guiding the exhaust gas to be exhausted from the plurality of exhaust chambers to the ventilation unit after being introduced into the plurality of exhaust chambers through openings respectively formed in the plurality of exhaust chambers;
A control unit for controlling the operation of the ventilation unit according to an operation mode including a ventilation mode in which outdoor air is introduced to exchange heat between outdoor air and indoor air, and an indoor humidification mode in which the indoor air is humidified by circulating indoor air without introducing outdoor air. and,
The ventilation unit is
a housing in which the indoor air supply port and the indoor exhaust port are formed to be spaced apart from each other by a predetermined distance on the front surface, and the outdoor air inlet and the outdoor exhaust port are formed to be spaced apart from each other by a predetermined distance on the rear surface;
a total heat exchanger which is disposed at an angle in the inner center of the housing to exchange heat between outdoor air and indoor air;
A first partition wall provided between the front surface of the housing and the total heat exchanger to divide the space on the front side of the housing into an indoor air supply space communicating with the indoor air supply port and an indoor exhaust space through which the indoor air discharged from the room is introduced. and,
a second partition wall provided between the rear surface of the housing and the total heat exchanger to divide the space on the rear side of the housing into an outdoor air introduction space communicating with the outdoor air inlet and an outdoor exhaust space communicating with the outdoor exhaust port;
a third partition wall provided between the left side surface of the housing and the total heat exchanger to partition the left space of the housing into the indoor exhaust space and the outdoor air introduction space;
a fourth partition wall provided between the right side of the housing and the total heat exchanger to partition the right space of the housing into the indoor exhaust space and the outdoor exhaust space;
an inner duct provided inside the housing to guide indoor air introduced through the indoor exhaust port into one of the outdoor air introduction space and the outdoor exhaust space;
and an outside air introduction duct formed to connect the outside air introduction port and the outside air introduction space,
The inner duct,
a first inner barrier rib vertically connected to the first barrier rib in the indoor exhaust space and disposed parallel to the front surface of the housing to form a first bypass flow path between the front surface of the housing;
A second bypass flow path connected to the end of the first inner partition wall and disposed parallel to the left side of the housing and passing through the indoor exhaust space and the outside air introduction space is formed between the left side of the housing. a second inner bulkhead to form;
a third inner barrier rib connecting an end of the second inner barrier rib and the third barrier rib and disposed parallel to the rear surface of the housing to form a third bypass flow path between the rear surface of the housing;
an opening hole formed in the first inner partition wall for guiding indoor air introduced through the indoor exhaust port to the indoor exhaust space;
a damper for ventilation mode installed in the opening hole for ventilation mode to open the opening hole for ventilation mode in the ventilation mode;
an opening hole for an indoor humidification mode formed in the second inner partition wall for guiding indoor air introduced into the inner duct to the outdoor air introduction space;
and a damper for indoor humidification mode installed in the opening hole for the indoor humidification mode to open the opening hole for the indoor humidification mode in the indoor humidification mode;
The control unit is
When the execution time of the ventilation mode elapses the preset maximum ventilation time, the ventilation mode is switched to the indoor humidification mode,
In the indoor humidification mode, the air supply fan is operated, the exhaust fan is stopped, the damper for the ventilation mode is controlled to block the opening hole for the ventilation mode, and the damper for the indoor humidification mode is set to the indoor humidification mode Control to open the opening hole for
The indoor air introduced into the ventilation unit through the indoor exhaust port sequentially passes through the first and second bypass passages of the inner duct, and then flows into the outdoor air introduction space through the indoor humidification mode opening hole, and the outdoor air An air circulation system using a toilet and bathroom exhaust to be supplied to a room through the indoor air supply space and the indoor air supply port after passing through the total heat exchanger in a direction from an introduction space to the indoor air supply space. 5. The method according to any one of claims 1 to 4,
The control unit is
In the ventilation mode, both the supply fan and the exhaust fan are operated, the damper for the ventilation mode is controlled to open the opening hole for the ventilation mode, and the damper for the indoor humidification mode is the opening hole for the indoor humidification mode Control to shield
After the indoor air introduced into the ventilation unit through the indoor exhaust port flows into the indoor exhaust space through the ventilation mode opening hole, and passes through the total heat exchanger in a direction from the indoor exhaust space toward the outdoor exhaust space, , an air circulation system using the toilet and bathroom exhaust to be discharged to the outdoors through the outdoor exhaust space and the outdoor exhaust. 5. The method according to any one of claims 1 to 4,
The ventilation unit is
The air circulation system using the toilet and bathroom exhaust further comprising a filter module including a HEPA filter and a pre-filter provided on the side facing the outside air introduction space in the total heat exchanger. 5. The method according to any one of claims 1 to 4,
The air circulation system using the toilet and bathroom exhaust further comprises a sterilizing means provided in at least one of the total heat exchanger, the indoor exhaust port, and the indoor air supply port to sterilize the air passing through the ventilation unit. 8. The method of claim 7,
The sterilization means,
An air circulation system using a toilet and bathroom exhaust including a sterilization lamp provided on at least one surface of a surface facing the outdoor air introduction space and a surface facing the indoor air supply space in the total heat exchanger. 8. The method of claim 7,
The sterilization means,
An air circulation system using a toilet and bathroom exhaust including a sterilization lamp detachably provided on at least one of the indoor exhaust port and the indoor air supply port. 5. The method according to any one of claims 1 to 4,
The air circulation system using a toilet and bathroom exhaust further comprising a sterilizing means coated with a sterilizing material on the surface of the total heat exchanger to sterilize the air passing through the total heat exchanger. 5. The method according to any one of claims 1 to 4,
Further comprising an exhaust room use detection unit receiving an input of whether the exhaust room is used,
The control unit is
When it is determined that the exhaust room is in use from the information input from the exhaust room use detection unit in a state in which the operation of the ventilation unit is stopped, the air supply fan is stopped and the exhaust fan is operated so that the air in the exhaust room is removed from the exhaust room. An air circulation system with toilet and bathroom exhaust that is exhausted to the outdoors through a ventilation unit. 12. The method of claim 11,
The control unit is
When it is determined that the use of the exhaust room is finished, the air circulation system using the toilet and bathroom exhaust stops the operation of the exhaust fan after a preset time has elapsed from the time when the use of the exhaust room is ended.

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