JPH0743155B2 - Heat exchange ventilation air conditioner - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat exchange ventilation air conditioner that simultaneously performs ventilation of a building and air conditioning for heating and cooling.

2. Description of the Related Art Conventionally, a room for ventilating has been limited to a limited place such as a kitchen room because of low awareness of ventilation in a house.
However, in recent years, with the improvement of living standard, the increase of air-conditioning and the spread of energy-saving concept have increased the air-tightness of houses, and the awareness of ventilation has increased, and ventilation has been performed in many places in the house. Particularly in recent years, there is an increasing tendency to simultaneously air-condition and ventilate the entire building or living area.

Conventionally, this type of heat exchange ventilation air conditioner is installed in the back of the ceiling of a house divided into a plurality of compartments as shown in FIG. 6, and inside the main body 1 of the heat exchange ventilation air conditioning unit, outside air OA and An indoor blower 2 that sucks indoor air RA and supplies air indoors through a heat exchange coil 5 through which a heat medium circulates;
It is configured to have an exhaust blower 3 that sucks indoor air RA and exhausts it through a heat exchanger 4 that exchanges heat from the exhaust air from the room and the supply air from the outdoors, and this heat exchange ventilation air conditioning unit. The main body 1 is an outdoor exhaust duct 6 for exhausting indoor air to the outside through the heat exchanger 4, and
An outside air introduction air supply duct 7 that communicates OA to the heat exchanger 4,
The air supply duct 8 for supplying the air discharged from the indoor blower 2 to the room through the heat exchange coil 5, and the room air RA to the indoor blower 2 and a part of the air for exhaust to the exhaust blower 3 Guided and connected return air duct 9, branch pipe
The exhaust duct 9b and the various ducts are connected to each other. Other toilet 13, bathroom 15, washroom 17, kitchen room 1
In 9, each of the ventilation systems 12, 14, 16, 18 dedicated to that room was installed on the ceiling, and outdoor exhaust ducts 6a, 6b, 6c, 6d were connected to each room to ventilate each room.

In the above configuration, when the exhaust blower 3 is operated, the indoor air RA passes from the return air duct 9 through the branch pipe 10 and the exhaust duct 9b to the exhaust blower 3 of the main body 1 as shown by the arrow. After being sucked in, discharged, further passed through the heat exchanger 4, and then exhausted to the outside by the outdoor exhaust duct 6. Further, when the indoor blower 2 is operated, the outside air OA passes through the outside air introduction air supply duct 7 as shown by the arrow, is sucked into the main body 1 and passes through the heat exchanger 4, and exchanges heat with the indoor air RA exhausted from the room. To do. The outside air OA that has undergone heat exchange is
After being mixed with the room air RA that has entered the main body 1 through the return air duct 9, it is sucked into the indoor blower 2 and then discharged and heated or cooled by the heat exchange coil 5 and passed through the air supply duct 8 to the room 11 The air supply was SA. Also ventilation device 12
Ventilates the air in the toilet 13 and exhausts it outside through the outdoor exhaust duct 6a. Similarly, the ventilation device 14
The air in 15 is ventilated and exhausted to the outside by the outdoor exhaust duct 6b, and the ventilation device 16 ventilates the air in the washroom 17 and vented to the outside by the outdoor exhaust duct 6c. In addition, the ventilation device 18 ventilates the air in the kitchen room 19 to provide an outdoor exhaust duct.
It was exhausted to the outside by 6d.

Problems to be Solved by the Invention In such a conventional configuration, there has been a problem that the number of ducts passing through the inside and outside of the building increases and the price becomes high. This duct goes through the beam of the building because it is installed above the ceiling. However, due to the strength of the building structure, it was necessary to minimize the number of ducts that penetrate the beams. Therefore, the problem of reducing the number of exhaust ducts in bathrooms, washrooms and toilets, and when operating only the ventilation system of the toilet, moisture enters from the bathroom and washroom, and when operating the ventilation system of the bathroom or washroom, odors are emitted from the toilet. There was a problem that it moved to other parts and was not good for hygiene.

In addition, when a ventilation device with a large exhaust air volume such as a ventilation device in the kitchen is operated, it is difficult to open and close the entrance door and the window due to an increase in the indoor / outdoor differential pressure. There is also a problem that cold draft occurs due to the invasion of outside air from the air supply port, the temperature distribution in the living area deteriorates, air conditioning is disturbed, and comfort cannot be maintained.

In addition, since the heat exchange ventilation air conditioning unit is based on constant ventilation, air conditioning is always performed by introducing outside air even during startup operation such as early morning, so it takes a long time to reach a certain environmental temperature during startup operation. It also had the problem of being costly.

The present invention is to solve the above problems, by reducing the number of ducts passing through the inside and outside of the building and the beams, while preventing the strength of the building from decreasing, and preventing the transfer of moisture and odor to other rooms,
Also, when operating the ventilation system in the kitchen room, the first purpose is to prevent the difficulty of opening and closing the entrance door due to the rise of the indoor and outdoor differential pressure, and the discomfort of cold draft and draft due to the air supply. The second and third purposes are to install a sensor suitable for each room, and link the sensor signal to a ventilation device to provide an energy-saving and comfortable environment without human intervention.

A fourth object is to prevent an increase in indoor / outdoor differential pressure that causes an increase in clearance air in a room with a large exhaust air volume.

The fifth purpose is to prevent the generation of cold draft due to the supply of outside air in winter and eliminate discomfort.

A sixth object is to shorten the time required to reach the target constant temperature environment and improve the energy saving property during the startup operation of the heat exchange ventilation air conditioning unit.

Means for Solving the Problem To achieve the first object, a first means of the present invention is to connect an outdoor exhaust duct for exhausting air to the outside and an outside air introducing / supplying duct for introducing outside air from the outside, Exhaust from a sanitary ventilation device that ventilates bathrooms, washrooms, and toilets by installing an exhaust duct connection part in the middle of the outdoor exhaust duct of a heat exchange ventilation air conditioning unit that performs air conditioning and heat exchange ventilation in the room using both ducts An exhaust duct connected to the exhaust duct connecting portion, and the outdoor exhaust duct portion on the upstream side of the exhaust duct connecting portion and the exhaust duct portion, respectively.
1, a second backflow prevention shutter is provided, further, an air supply duct connecting portion is provided at an intermediate portion of the outside air introducing air supply duct, and the air supply duct for the kitchen room is connected to the air supply duct connecting portion, The air supply duct is connected to a kitchen room air supply port provided in the kitchen room, and a third backflow prevention shutter is provided in the outside air introduction air supply duct section downstream of the air supply duct connection section.
Further, a first damper is provided in the air supply duct part for the kitchen room, and the first damper is opened and closed in conjunction with the kitchen room ventilation device provided for ventilation in the kitchen room or the sanitary ventilation device. It is configured.

A second means for achieving the second object is to provide a humidity sensor for detecting a humidity value in each of a bathroom and a washroom, and a human body detection sensor for detecting the presence / absence of a person in the toilet, so that a certain level or more is provided. When the humidity value is detected or the presence of a person is detected, the sanitary ventilation device can be operated in conjunction with each other.

A third means for achieving the third object is to provide a carbon dioxide sensor for detecting the carbon dioxide concentration in the kitchen room, and to operate the ventilation system for the kitchen room in conjunction with the detection of the carbon dioxide concentration above a certain value. It is composed.

In order to achieve the fourth object, the fourth means is arranged so that at least the kitchen room is supplied with outside air by a blower,
When the sanitary ventilation device or the kitchen ventilation device is operated, the blower is operated in conjunction with it to supply the outside air to the room and prevent the indoor / outdoor differential pressure from rising above a certain value. It was done.

A fifth means for achieving the fifth object is to provide a heater for heating outside air to be supplied into the kitchen room, and operate the heater in conjunction with the operation of the winter ventilation room ventilation device to operate near the room temperature. It is configured to control and supply air.

A sixth means for achieving the sixth object is to provide a second damper on the outside air inflow side of an air supply duct connecting portion provided at an intermediate portion of the outside air introducing air supply duct, and the second damper is a heat exchanger. It is configured to interlock with the operation control unit of the exchange ventilation air conditioning unit and control to close the heat exchange ventilation unit for a certain period of time at the start of operation and stop the introduction of outside air.

Action With the configuration of the first means, the number of ducts communicating from the inside of the building to the outside of the building is only three: the outside air introduction air supply duct of the heat exchange ventilation unit, the outdoor exhaust duct, and the exhaust duct of the ventilation device for the kitchen room. Also, due to the functions of the outdoor exhaust duct, the exhaust duct, and the first, second, and third backflow prevention shutters provided in the outdoor air introduction air supply duct and the first damper provided in the air supply duct for the kitchen room, respectively. During operation or stop, the outside air is prevented from entering and the backflow and circulation of air to the other room are prevented, and the invasion of humidity and odor to the other room is prevented.

In addition, the bathroom, washroom, and toilet are collectively ventilated by a sanitary ventilation device, so that ventilation is performed without transfer of moisture and odor to each other.

Due to the configuration of the second and third means, the humidity value in the bathroom and washroom,
By detecting the presence / absence of entry into the toilet and the concentration of carbon dioxide in the kitchen room, the bathroom, washroom, and toilet can be automatically operated in conjunction with the sanitary ventilation system and the kitchen room in conjunction with the kitchen room ventilation system. .

According to the configuration of the fourth means, when the sanitary ventilation device and the kitchen ventilation device are operated, the air blower provided in the outside air introduction air supply duct section operates to increase the air supply air volume, and the bathroom, washroom, Toilet and kitchen rooms are controlled to have a certain negative pressure that is slightly lower than other rooms, and humidity in the bathroom and washroom, odor in the toilet, transfer of dirty air in the kitchen room, and drafts from outside the house Work to prevent the intrusion of.

According to the configuration of the fifth means, when the heat exchange ventilation air conditioning unit is operated, the heater in the winter kitchen air supply port operates,
The air heated to near room temperature is supplied, and the occupants will be prevented from being affected by the cold draft and will be operated.

With the configuration of the sixth means, during the startup operation of the heat exchange ventilation unit, the second damper is closed, and the outside air introduced from the outside air introduction air supply duct is controlled to stop for a certain period of time so that the room has a constant temperature environment. It reduces the operating time and improves energy efficiency for driving.

Embodiment First, an embodiment of the first means of the present invention will be described with reference to FIG.

The same parts as those in the conventional example are designated by the same reference numerals and the description thereof will be omitted. In FIG. 1, the toilet 13, the bathroom 15 and the washroom 17 are provided with ventilation openings 12, 14 and 16, respectively.
The ducts 6f and 6g are connected to the sanitary ventilation device 20 from 2,14 and 16. The outdoor exhaust duct 6 connected as an air passage for exhausting indoor air from the heat exchange ventilation air conditioning unit is connected to the exhaust duct 6e of the sanitary ventilation device 20 for performing the ventilation of the bathroom 15, washroom 17 and toilet 13 respectively. And a common exhaust duct connecting portion 21 is provided.
Backflow prevention shutters 22a and 22b are provided on the outdoor exhaust duct 6 and the exhaust duct 6e on the upstream side of 21, respectively. Further, the outside air introduction air supply duct 7 for introducing fresh outside air is provided with an air supply duct connecting portion 24 for connecting the kitchen room air supply duct 23 for supplying air to the kitchen room 19 and sharing the same. A backflow prevention shutter 22c is provided in the outside air introduction air supply duct 7 on the downstream side of 24. Air supply duct 2 for the kitchen room
A damper (26) is provided between the air supply duct connecting portion (24) and the air supply port (25) for the kitchen room. Further, the kitchen room ventilation device 18 has three exhaust ducts 6d that communicate with the outside from the inside of the building to the outside of the building.

Regarding the heat exchange ventilation air conditioner configured as described above,
The operation will be described below.

In the above configuration, the operation of the heat exchange ventilation air conditioning unit 1 is the same as that of the conventional example, and therefore its explanation is omitted. The air exhausted to the outside of the room during operation of the heat exchange ventilation air conditioning unit 1 is exhausted to the outside of the room from the exhaust duct connecting portion 21 through the outdoor exhaust duct 6. Further, the air exhausted from the bathroom 15, the washroom 17 and the toilet 13 to the outside of the room is operated by operating the sanitary ventilation device 20, and the ventilation openings 14, 1 of the bathroom 15, the washroom 17 and the toilet 13 are provided.
From 6,12, the gas is discharged to the outside through the exhaust ducts 6g, 6f, 6e, the exhaust duct connecting portion 21 and the outdoor exhaust duct 6. In addition, a kitchen ventilation device 18 (for example, a range hood,
The air exhausted to the outside during operation of a range hood (hereinafter abbreviated as ") is exhausted to the outside through an exhaust duct 6d communicating with the outside. The damper 26 between the air supply duct connecting portion 24 and the kitchen room air supply port 25 is normally closed, and the outside air introduction air supply duct 7 is provided.
Outside air flowing in through the kitchen room air supply port 25 through the outside, or when the heat exchange ventilation air conditioning unit 1 is operated, the outside air introduction air supply duct 7
Not only the outside air from the inside but also the air in the living room is prevented from being mixed and circulated from the room 11 to the outside air introduction port 27 through the kitchen return chamber 19 and the kitchen room air supply port 25. Further, the damper 26 is opened in association with the operation of the range hood 18 or the sanitary ventilation device 20, and operates so that the outside air can be introduced from the air supply port 25 for the kitchen room. Exhaust duct connection part 21 Backflow prevention shutter on the upstream side
When the heat exchange ventilation air conditioning unit 1 or the sanitary ventilation device 20 alone is operated, the reference numerals 22a and 22b prevent the air exhausted outside from flowing into the room again from the exhaust duct connecting portion 21. Further, the backflow prevention shutter 22c on the downstream side of the air supply duct connecting portion 24 prevents the backflow of air from the outside air introduction port 27 through the heat exchange ventilation air conditioning unit from the room 11 when only the range hood 18 is operated alone. .

By configuring and operating as described above, it is possible to reduce the number of ducts that pass through the beams above the ceiling of the building. In addition, even when any one or more of the bathroom 15, the washroom 17 and the toilet 13 is ventilated, in order to ventilate the sanitary ventilation device 20 at the same time, the humidity from the bathroom 15 and the washroom 17 and the toilet 13 It is possible to prevent the odor from moving into the living room. Also sanitary ventilation 20 and range hood
In order to open the damper 26 and supply air in conjunction with the operation of 18,
It is possible to prevent discomfort due to difficulty in opening and closing entrance doors and windows due to rise in indoor / outdoor differential pressure and generation of drafts.

Next, the second embodiment of the second and third means of the present invention will be described.
It will be described with reference to the drawings.

The same parts as those of the conventional example and the first embodiment of the first invention are designated by the same reference numerals and the description thereof will be omitted.

In the figure, a humidity sensor 28 is installed in the bathroom 15 and washroom 17.
a, 28b, the human body detection sensor 29 in the toilet 13, the kitchen room 1
9 is equipped with a carbon dioxide sensor 30. Moreover, each sensor is connected to the sanitary ventilation device 20 by a signal line (not shown).
Also, it is connected to a device (not shown) that opens and closes the power source of the range hood 18, and is configured to be able to transmit ON-OFF information of operation.

Regarding the heat exchange ventilation air conditioner configured as described above,
The operation will be described below.

In the above configuration, operation control of the sanitary ventilation device 20 will be described first. FIG. 5 shows a control flow chart of the sanitary ventilation device 20. If the relative humidity (hereinafter abbreviated as RH) becomes 50% or more in step F ₂ by detecting the humidity in the bathroom 15 in step F ₁ by using the humidity sensor 28a to which polymer resin or ceramic is applied. Moves to step F ₉ to operate the sanitary ventilation device 20. The RH of the lavatory 17 RH in the bathroom 15 proceeds to the next Step F ₃ if 50% or less detected by the humidity sensor 28b, RH 5
If equal to or greater than 0%, to operate the sanitary ventilator 20 proceeds to step F _9. RH in lavatory 17 performs the human body detection in the toilet 13 proceed to step F ₅ if 50% or less.
The presence / absence of a person in the toilet 13 is detected by the human body detection sensor 29 using infrared rays in step F ₆ to determine the entry / exit of a person. If the entry / exit is detected, the procedure proceeds to step F ₇ and a delay timer (not shown). Step F ₉ by activating (ON)
Proceed to and operate the sanitary ventilation device 20. If there is no entry or exit, go to step F ₈ and check whether the delay timer has been started.If the timer is ON, go to step F ₉ to continue the operation of the sanitary ventilation device 20, and if it is OFF, go to step F ₁₀ . Control is performed so as to stop the transfer sanitary ventilation device 20. If you are bathing and do not need ventilation, switch from automatic operation to manual operation.

Next, the operation control of the range hood 18 will be described. In the above-mentioned configuration, the carbon dioxide gas concentration in the kitchen room 19 is measured using a carbon dioxide gas sensor 30 such as an infrared spectroscopic type or a ceramic, and the range hood 18 is operated when the carbon dioxide gas concentration in the kitchen room 19 becomes 2000 ppm or more, for example. . When the carbon dioxide concentration in the kitchen room 19 becomes 2000 ppm or less, control is performed to stop the ventilation device of the range hood 18.

As described above, the humidity sensors 28a, 28b, human body detection sensor
By sensing each information using the 29 and the carbon dioxide sensor 30 and controlling to perform automatic operation, it is possible to eliminate the troublesomeness of the switch ON-OFF operation, forgetting to switch on and forgetting to switch off. Moreover, the transfer of humidity and odor into the living room can be prevented in advance, and efficient ventilation can be performed.

An embodiment of the fourth means will be described with reference to FIG.

The same parts as those of the conventional example and one embodiment of the first and second means are designated by the same reference numerals and the description thereof will be omitted.

In the figure, the air supply duct connecting portion of the outside air supply air supply duct 7
24 An air blower 31 is provided on the upstream side.

Regarding the heat exchange ventilation air conditioner configured as described above,
The operation will be described below.

In the above configuration, when the sanitary ventilation device 20 or the range hood 18 is operated, the blower device 31 is operated such that information is transmitted to the blower device 31 via a signal line (not shown) to increase the supply air volume for introducing outside air. The outside air from the gap such as windows,
Alternatively, it prevents the negative pressure from inflowing a large amount of air from other rooms to prevent the bathroom 15, the washroom 17, the toilet 13 and the kitchen room 19
Is controlled so as to have a constant negative pressure with a slight difference from the other chamber.

As described above, by incorporating the air blower 31, even when operating a ventilator with a large exhaust air volume, the rise in the indoor / outdoor differential pressure is suppressed, and a large amount of air flows in from the other room or the outdoor and the indoor temperature is increased. Comfortableness can be maintained by eliminating air-conditioning disturbances that would worsen the distribution. Therefore, the humidity in the bathroom and washroom, the odor in the toilet, the transfer of dirty air in the kitchen,
It will prevent drafts from entering from outside the house.

Next, one embodiment of the fifth and sixth means will be described with reference to FIG.

The same parts as those of the conventional example and the one embodiment of the first, second, third and fourth means are designated by the same reference numerals and the description thereof will be omitted.

In the figure, the air blower 31 and the air supply duct connecting portion 24
A damper 32 is provided between the air conditioner and the heater, and a heater 33 is provided inside the air supply port 25 for the kitchen room.

Regarding the heat exchange ventilation air conditioner configured as described above,
The operation will be described above.

In the above configuration, the heater 33 uses an electric heater or the like, for example, and when the temperature of the air supplied from the outside is low, such as in the winter, since it is brought as close to room temperature as possible, the heater 33 operates to heat the air. The damper 32 is interlocked with an operation control unit (not shown) of the heat exchange ventilation air conditioning unit in order to shorten the startup time during the startup operation of the heat exchange ventilation air conditioning unit 1, and the damper 32 is operated for a fixed time at the start of operation. 32
Close the room to stop the introduction of outside air, and enter the room from the air supply port 25 for the kitchen room.
It operates so that the air inside flows into the outside air inlet 27. Further, particularly in winter, early morning, etc., the start-up time can be further shortened by heating the air in the living room 11 with the heater 33 and taking it into the outside air inlet 27.

As described above, by incorporating the heater 33, low-temperature outside air is heated to near room temperature and supplied, so that the discomfort of air conditioning due to the occurrence of cold draft can be prevented and the comfort can be maintained. Further, when the damper 32 is incorporated, during the start-up operation of the heat exchange ventilation air conditioning unit 1, the indoor air is sucked from the kitchen room air supply port 25, heated, and introduced into the heat exchange ventilation air conditioning unit 1. By using the above method, the startup operation time of the heat exchange ventilation air conditioning unit 1 can be shortened, and the energy saving can be improved because the outside air having a temperature lower than that at the start of the operation is not introduced.

Although the heater 33 is an electric heater in this embodiment,
The heater 33 may be formed by flowing hot water of a coil with a heat radiating plate.

Although the heater 33 is provided inside the kitchen room air supply port 25 in the present embodiment, it may be provided at either the kitchen room air supply duct 23 or the air supply duct connecting portion 24.

EFFECTS OF THE INVENTION As is apparent from the above embodiments, according to the present invention, in the heat exchange ventilation air conditioner according to claim 1, which has the following effects, exhaust ducts such as toilets, bathrooms, and washrooms are provided in each room. By connecting each to a common sanitary ventilation device that ventilates in common and exhausting it outside into a single room, it is possible to reduce the number of ducts that pass through the beams behind the ceiling of the building, reduce the equipment price, and reduce the cost of the building. It is possible to prevent a decrease in strength.

Also, the bathroom, washroom, and toilet are sanitary ventilation devices 1
Since the pedestal is ventilated at the same time, it is possible to prevent moisture from the bathroom and washroom and odors from the toilet from transferring into the living room. In addition, when the first damper is opened and air is supplied in conjunction with the operation of the sanitary ventilation device and range hood, it is possible to prevent the opening and closing of the entrance doors and windows due to the rise of the indoor and outdoor differential pressure, and the discomfort caused by drafts. it can.

In the heat exchange ventilation air conditioner of claims 2 and 3, a humidity sensor, a human body detection sensor, and a carbon dioxide sensor are provided in the room, and the switch is turned on to automatically operate the sanitary ventilation apparatus and the kitchen ventilation apparatus. -It is possible to eliminate the inconvenience of the cutting operation, save energy, and realize a more comfortable environment.

In the heat exchange ventilation air conditioner according to claim 4, the air blower increases the supply air volume in conjunction with the operation of the sanitary ventilation device and the kitchen room ventilation device, so that the indoor and outdoor differential pressure is further adjusted to an appropriate value. It is possible to prevent the invasion of drafts and the disturbance of air conditioning such as the temperature distribution in the living room.

In the fifth aspect of the heat exchange ventilation air conditioner, since the air supplied by introducing the outside air by the heater is heated to near room temperature and supplied, when the outside air temperature is low, the discomfort of the occupants due to the generation of cold draft may occur. Be improved.

According to the sixth aspect of the heat exchange ventilation air conditioning system, by closing the damper for a certain period of time and stopping the introduction of outside air during the startup operation of the heat exchange ventilation air conditioning unit, the startup time to reach the target temperature environment is shortened. The energy saving can be improved.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of a heat exchange ventilation air conditioner showing an embodiment of the first means of the present invention, and FIG. 2 is a schematic view of a heat exchange ventilation air conditioner showing an embodiment of the second and third means of the present invention. Configuration diagram, FIG. 3 is a schematic configuration diagram of a heat exchange ventilation air conditioner showing an embodiment of the fourth means, and FIG. 4 is a schematic diagram of a heat exchange ventilation air conditioner of an embodiment of the fifth and sixth means. FIG. 5 is a configuration diagram, FIG. 5 is a flow chart showing a control sequence of the sanitary ventilation device, and FIG. 6 is a schematic configuration diagram showing a conventional heat exchange ventilation air conditioning unit and a sanitary and kitchen room ventilation device. 1 …… Heat exchange ventilation air conditioning unit, 6 …… Outdoor exhaust duct, 6a, 6b, 6c, 6d, 6e, 6f …… Exhaust duct, 7 …… Outside air introduction air supply duct, 13 …… Toilet, 15 …… Bathroom , 17 ... washroom, 18 ... kitchen room ventilation system, 20 ... sanitary ventilation system, 21 ... exhaust duct connection, 22a, 22b ... first and second backflow prevention shutter, 22c ... second 3 backflow prevention shutter, 23 ... kitchen room air supply duct, 24 ... air supply duct connection part, 25 ... kitchen room air supply port, 26 ... first damper,
28a, 28b ... Humidity sensor, 29 ... Human body detection sensor, 30 ...
… Carbon dioxide sensor, 31 …… Blower, 32 …… Second damper, 33 …… Heating device.

Claims (6)

[Claims] 1. A heat exchange ventilation air conditioning unit for connecting an outdoor exhaust duct for exhausting air to the outside and an outdoor air introducing air supply duct for introducing outside air from the outside, and performing air conditioning and heat exchange ventilation in the room using both the ducts. An exhaust duct connecting portion is provided at an intermediate portion of the outdoor exhaust duct, and an exhaust duct for exhausting air from a sanitary ventilation device for ventilating a bathroom, a washroom, or a toilet is connected to the exhaust duct connecting portion, and the exhaust duct connecting portion is provided. The outdoor exhaust duct portion on the upstream side of the above and the exhaust duct portion are provided with first and second backflow prevention shutters, respectively, and further, an air supply duct connecting portion is provided at an intermediate portion of the outside air introduction air supply duct, An air supply duct for the kitchen room is connected to the air supply duct connection portion, and the air supply duct is connected to an air supply port for the kitchen room provided in the kitchen room, and is provided outside the downstream side of the air supply duct connection portion. Introducing air supply duct portion, the third backflow prevention shutter is provided, further a first damper disposed in the air supply duct for the kitchen chamber, the first damper,
A heat exchange ventilation air conditioner configured to open and close in cooperation with a kitchen room ventilation device provided for ventilation in the kitchen room or the sanitary ventilation device. 2. When a humidity sensor for detecting a humidity value is provided in a bathroom or a washroom, and a human body detection sensor for detecting the presence or absence of a person is provided in a toilet to detect a humidity value above a certain level. The heat exchange ventilation air conditioner according to claim 1, wherein the sanitary ventilation device can be operated in conjunction with each other when the presence of a person is detected. 3. A structure comprising a carbon dioxide sensor for detecting carbon dioxide concentration in the kitchen room so that when the carbon dioxide concentration of a certain value or more is detected, the ventilation system for the kitchen can be operated in conjunction. The heat exchange ventilation air conditioner according to item 1 or 2. 4. A sanitary ventilation device or a sanitary ventilation device, which is provided in at least a kitchen room so as to supply outside air by a blower device.
Claims: When the ventilation device for the kitchen room is operated, the operation of the blower device is interlocked to supply the outside air to the room to prevent the indoor / outdoor differential pressure from rising above a certain value. The heat exchange ventilation air conditioner according to the first, second or third aspect. 5. A structure is provided in which a heater for heating the outside air to be supplied is provided in the kitchen room, and the heater is operated in conjunction with the operation of the winter kitchen room ventilation device to control and supply air near room temperature. The heat exchange ventilation air conditioner according to claim 4. 6. A second damper is provided at an outside air inflow side of an air supply duct connecting portion provided at an intermediate portion of the outside air introducing air supply duct,
The second damper is interlocked with an operation control section of the heat exchange ventilation air conditioning unit, and is configured to perform control so as to close the heat exchange ventilation unit for a certain period of time and stop introduction of outside air when the operation of the heat exchange ventilation unit is started. The heat exchange ventilation air conditioner according to any one of 2, 3, 4, and 5.