JPH10274425A - Air conditioner with ventilation function and ventilation air conditioning system using the air conditioner - Google Patents

Abstract

(57) [Abstract] [Problem] While performing ventilation and air conditioning with an integrated device,
To provide an air conditioner with a ventilation function and a ventilation air conditioning system having both comfort, low cost, and energy saving by simplifying and shortening a duct pipe. SOLUTION: An air conditioner indoor unit 2 of a ceiling embedded type or a ceiling suspended type.
Are provided with ventilation fans 21 and 22 and the ventilation fans 21 and 22 are connected to the outside by one ventilation duct 3 through which ventilation air flows. With such a configuration, the indoor temperature is adjusted by the indoor unit 2 for air conditioning, and the ventilation fan 2 provided in the indoor unit 2 is provided.
The ventilation of the indoors is performed by the indoor and outdoor units 2 and 22, and as a synergistic effect between them, the indoor air cleanliness and comfort are enhanced, and the ventilation fans 21 and 22 are provided inside the indoor unit 2.
The temperature control unit and the ventilation unit can be integrated by arranging the devices, and the cost of the device itself can be reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner with a ventilation function and a ventilation and air conditioning system using the air conditioner with a ventilation function.

[0002]

2. Description of the Related Art In recent years, in air conditioners, natural ventilation has been reduced due to high airtightness of houses, volatile organic compounds (VOC) generated from building materials have increased, and CO ₂ in indoors and outdoors has been reduced.
Due to the deterioration of the living environment, such as an increase in the amount of generated air, and the demand for a reduction in the cost of electricity associated with air conditioning, ventilation and air conditioning in consideration of energy saving are also required in ordinary houses.

[0003] In this case, from the viewpoint of space saving of the air conditioner occupying the indoor space or interior characteristics, a ventilation air conditioning system using a ceiling surface or a space above the ceiling is gradually spreading. Current examples of such a ventilation and air conditioning system include, for example, (A) a combination of a ceiling embedded indoor unit with a ceiling embedded ventilation fan with a total heat exchanger, (B) a duct central ventilation air conditioning system, and (C). A combination of a multi-chamber malt system and a duct central ventilation system is known.

[0004]

However, each of the above current examples has the following problems.

[0005] As described in the above (A), in a combination of a ceiling-mounted indoor unit and a ceiling-mounted ventilation fan with a total heat exchanger, ventilation and air-conditioning in consideration of energy saving can be realized. The system configuration requires two types of devices, and there is a problem that the number of devices to be installed and their construction costs are high. In addition, although the outdoor air taken in from the ventilation fan is exchanged in total heat, it is blown out into the room as it is without controlling the temperature. In addition, as another example of the ventilation air-conditioning system having such a configuration, there is a system in which a wall-mounted indoor unit is provided with a ventilation function, but this is not preferable in terms of space saving and interior characteristics.

In the duct central ventilation and air-conditioning system as described in (B) above, ventilation and air-conditioning can be performed in consideration of energy saving, and the temperature of the outdoor air is controlled after the total heat exchange and is blown into the room. This is a typical ventilation and air-conditioning system, but the equipment that constitutes this system is expensive, and requires long duct piping, resulting in extremely high construction costs. was there.

[0007] As described in the above (C), a combination of a multi-room malt system and a duct central ventilation system can perform ventilation and air conditioning in consideration of energy saving, but the air conditioning and ventilation are separate systems of equipment. For this reason, there has been a problem that the equipment and its construction cost are expensive. Also,
Since the taken-in outdoor air is blown out into the room without controlling the temperature, there is still dissatisfaction in terms of indoor comfort.

Accordingly, the present invention provides an air conditioner with a ventilation function having both comfort, low cost, and energy saving by performing ventilation and air conditioning with an integrated device and making the duct piping simple and short. And a ventilating air conditioning system.

[0009]

Means for Solving the Problems In the present invention, the following configuration is adopted as specific means for solving such problems.

In the first invention of the present application, a ventilation fan is provided inside a ceiling-mounted or ceiling-mounted air-conditioning indoor unit, and the ventilation fan and the outside are connected by a single air-flowing ventilating air. It is characterized by being connected by a ventilation duct.

According to a second invention of the present application, in the air conditioner with a ventilation function according to the first invention, the ventilation fan functions as an intake fan that takes in outdoor air.

According to a third aspect of the present invention, in the air conditioner with a ventilation function according to the first aspect, the ventilation fan functions as an exhaust fan for exhausting room air.

According to a fourth aspect of the present invention, in the air conditioner with a ventilation function according to the first aspect, there is provided a ventilation path switching member for switching a ventilation path of the ventilation fan, and a switching operation of the ventilation path switching member. Thus, the function of the ventilation fan can be selected between an intake fan that takes in outdoor air and an exhaust fan that exhausts room air.

According to a fifth aspect of the present invention, in the air conditioner with a ventilation function according to the first aspect, the ventilation fan includes an intake fan that takes in outdoor air and an exhaust fan that exhausts room air. Along with the two fans, the internal passages of the ventilation duct were respectively formed as two branch passages facing the outdoor independently, and each of the branch passages was connected to the intake fan and the exhaust fan, respectively. It is characterized by:

According to a sixth aspect of the present invention, in the air conditioner with a ventilation function according to the fifth aspect, a total heat exchanger is installed inside the air conditioner indoor unit, and the total heat exchanger is installed from outside the room. It is characterized in that total heat exchange is performed between the introduced outdoor air and the indoor air discharged from the room.

According to a seventh aspect of the present invention, in the air conditioner with a ventilation function according to the sixth aspect, the total heat exchange between the outdoor air and the indoor air is stopped.
It is characterized in that introduction of outdoor air, discharge of indoor air, or introduction of outdoor air and discharge of indoor air can be selectively performed.

According to an eighth aspect of the present invention, in the air conditioner with a ventilation function according to the seventh aspect, only outdoor air is introduced when total heat exchange is not performed. It is characterized in that the passage is used as an intake passage.

According to a ninth aspect of the present invention, in the air conditioner with a ventilation function according to the seventh aspect of the present invention, only indoor air is exhausted when total heat exchange is not performed. It is characterized in that the passage is used as an exhaust passage.

According to a tenth aspect of the present invention, in the air conditioner with a ventilation function according to the second, fourth, fifth, sixth, seventh or eighth aspect, an indoor temperature sensor for detecting an indoor temperature is provided. An outdoor temperature sensor that detects an outdoor temperature,
The relationship between the indoor temperature, the outdoor temperature, and the set temperature is “outdoor temperature ≦ set temperature <indoor temperature”, “set temperature ≦ outdoor temperature <indoor temperature”, “indoor temperature <set temperature ≦ outdoor temperature” or “ When the relationship of “indoor temperature <outdoor temperature ≦ set temperature” is satisfied, total heat exchange between the outdoor air and the indoor air is not performed, and only the introduction of the outdoor air is performed.

According to an eleventh aspect of the present invention, in the air conditioner with a ventilation function according to the tenth aspect, the relationship between the indoor temperature, the outdoor temperature, and the set temperature is expressed as “outdoor temperature ≦
If the relationship is other than “set temperature <indoor temperature”, “set temperature ≦ outdoor temperature <indoor temperature”, “indoor temperature <set temperature ≦ outdoor temperature” or “indoor temperature <outdoor temperature ≦ set temperature”, outdoor air And the indoor air is flowed through the total heat exchanger to perform the total heat exchange action in the total heat exchanger.

According to a twelfth aspect of the present invention, in the air conditioner with a ventilation function according to the tenth or eleventh aspect, the relationship among the indoor temperature, the outdoor temperature, and the set temperature is as follows:
“Outdoor temperature ≦ Set temperature <Indoor temperature”, “Set temperature ≦ Outdoor temperature <Indoor temperature”, “Indoor temperature <Set temperature ≦ Outdoor temperature”
Alternatively, in a case other than the relationship of “indoor temperature <outdoor temperature ≦ set temperature”, the amount of ventilation in the room is reduced as compared with the case where the relationship is satisfied.

According to a thirteenth aspect of the present invention, in the air conditioner with a ventilation function according to the twelfth aspect, the amount of ventilation is set to “0 to 30 m ³ / hr” per occupant of the room.
Is set.

According to a fourteenth aspect of the present invention, in the air conditioner with a ventilation function according to the second, fourth, fifth, sixth, seventh or eighth aspect, an indoor temperature sensor for detecting an indoor temperature is provided. An outdoor temperature sensor for detecting the outdoor temperature, an indoor humidity sensor for detecting the indoor humidity, and an outdoor humidity sensor for detecting the outdoor humidity are provided, and an outdoor enthalpy, an indoor air enthalpy, and an air enthalpy at the set temperature and the set humidity are included. The relationship between the persons is "outdoor air enthalpy ≤ air enthalpy of set temperature / humidity <indoor air enthalpy",
"Air enthalpy of set temperature / humidity ≤ outdoor air enthalpy <indoor air enthalpy", "room air enthalpy <
Total heat exchange between outdoor air and indoor air when the relationship of air enthalpy of set temperature and humidity ≤ outdoor air enthalpy <indoor air enthalpy <outdoor air enthalpy ≤ air enthalpy of set temperature and humidity> It is characterized in that only the introduction of outdoor air is performed without effect.

According to a fifteenth aspect of the present invention, in the air conditioner with a ventilation function according to the fourteenth aspect, an air enthalpy outside the room, an air enthalpy inside the room, and an air enthalpy at the set temperature and the set humidity are settled. Relationship
"Outdoor air enthalpy ≤ Air enthalpy at set temperature / humidity <Indoor air enthalpy", "Air enthalpy at set temperature / humidity ≤ Outdoor air enthalpy <Indoor air enthalpy", "Indoor air enthalpy <Air enthalpy at set temperature / humidity ≤ Outdoor In the case other than the relationship of “air enthalpy” or “indoor air enthalpy <outdoor air enthalpy ≦ air enthalpy of set temperature / humidity”, both outdoor air and indoor air flow into the above total heat exchanger to perform the total heat exchange. It is characterized in that a total heat exchange action is performed in the vessel.

According to a sixteenth aspect of the present invention, in the air conditioner with a ventilating function according to the fourteenth or fifteenth aspect, an outdoor air enthalpy, an indoor air enthalpy, and an air enthalpy at a set temperature and a set humidity are set. The relationship between the persons is as follows: "outdoor air enthalpy ≤ air enthalpy of set temperature / humidity <indoor air enthalpy", "air enthalpy of set temperature / humidity ≤ outdoor air enthalpy <indoor air enthalpy", "indoor air enthalpy <set temperature / If the relationship is other than the relationship of “air enthalpy of humidity ≦ outdoor air enthalpy” or “indoor air enthalpy <outdoor air enthalpy ≦ air enthalpy of set temperature / humidity”, reduce the amount of indoor ventilation as compared with the relationship. It is characterized by:

According to a seventeenth aspect of the present invention, in the air conditioner with a ventilation function according to the sixteenth aspect, the amount of ventilation is set to "0 to 30 m ³ / hr" per occupant of the room.
Is set.

According to an eighteenth aspect of the present invention, in the air conditioner with a ventilation function according to the thirteenth or seventeenth aspect, the number of occupants in the room is detected by manual input.

According to a nineteenth aspect of the present invention, in the air conditioner with a ventilation function according to the thirteenth or seventeenth aspect, the number of indoor occupants is detected by a sensor.

According to a twentieth aspect of the present invention, in the air conditioner with a ventilation function according to the tenth, eleventh, twelfth, eighteenth or nineteenth aspect, when starting the air conditioning operation,
Only the introduction of outdoor air is performed until the indoor temperature and the outdoor temperature become substantially equal, and the air conditioning operation is started after the indoor temperature and the outdoor temperature become substantially equal.

According to the twenty-first aspect of the present invention, in the air conditioner with a ventilation function according to the fourteenth, fifteenth, sixteenth, seventeenth, eighteenth, or nineteenth aspect, when starting the air conditioning operation, the indoor air conditioner is started. Only the introduction of outdoor air is performed until the air enthalpy is substantially equal to the outdoor air enthalpy, and the air conditioning operation is started after the indoor air enthalpy is substantially equal to the outdoor air enthalpy.

In the twenty-second invention of the present application, the second, fourth, fifth, sixth, seventh, eighth, ninth, tenth, eleventh,
In the air conditioner with a ventilation function according to the twelfth, thirteenth, fourteenth, fifteenth, sixteenth, seventeenth, eighteenth, twentieth, or twenty-first invention, the outdoor air from the outdoor is used for the air conditioning. It is characterized in that the air is blown into the room after flowing into the upstream of the indoor unit and adjusting the temperature of the intake air.

In the twenty-third invention of the present application, the second, fourth, fifth, sixth, seventh, eighth, ninth, tenth, eleventh,
In the air conditioner with a ventilation function according to the twelfth, thirteenth, fourteenth, fifteenth, sixteenth, seventeenth, eighteenth, twentieth, twenty-first or twenty-second invention, the outdoor in the air-conditioned indoor unit is provided. It is characterized in that a dust filter is provided in the air circulation path.

In the twenty-fourth aspect of the present invention, the second, fourth, fifth, sixth, seventh, eighth, ninth, tenth, eleventh,
In the air conditioner with a ventilation function according to the twelfth, thirteenth, fourteenth, fifteenth, sixteenth, seventeenth, eighteenth, nineteenth, twentieth, twenty-second, twenty-second, or twenty-third inventions, A NOx removal filter is provided in a flow path of outdoor air in the machine.

In the twenty-fifth aspect of the present invention, the second, fourth, fifth, sixth, seventh, eighth, ninth, tenth, eleventh,
A plurality of air conditioning indoor units according to the twelfth, thirteenth, fourteenth, fifteenth, sixteenth, eighteenth, nineteenth, twentieth, twenty-first, twenty-second, twenty-third, twenty-third or twenty-fourth are installed, Further, it is characterized in that the control of each of these air-conditioning indoor units is performed in an integrated manner.

[0035]

According to the present invention, the following effects can be obtained by adopting such a configuration.

(1) According to the air conditioner with a ventilation function according to the first invention of the present application, a ventilation fan is provided inside the ceiling-mounted or ceiling-mounted air-conditioning indoor unit, and the ventilation fan is provided. Since the fan and the outside are connected by a single ventilation duct through which ventilation air flows, indoor temperature is controlled by the indoor unit for air conditioning, and ventilation of the room is performed by the ventilation fan provided in the indoor unit. As a synergistic effect of these, air cleanliness and comfort in the room are enhanced.By arranging a ventilation fan inside the indoor unit, the temperature control unit and the ventilation unit are integrated, for example, Compared to the case of having two devices, an indoor unit for temperature control and a ventilation fan with a ventilation fan, the cost of the device itself is reduced. The ventilation fan provided inside the indoor unit and the outdoor And one ventilation duct Connection and ventilation, the ventilation duct piping is simplified and the length is shortened, which can reduce the construction cost.Especially, when the air-conditioning indoor unit is embedded ceiling type, In addition to promoting the space saving of equipment placement space in the indoor space, the interior of the room has been improved,
Conversely, if the air-conditioning indoor unit is a ceiling-mounted type, although dissatisfaction remains in terms of space saving, the installation cost of the equipment such as ventilation ducts is simple, so the construction cost can be further reduced, And the like.

(2) According to the air conditioner with a ventilation function according to the second invention of the present application, the following specific effects can be obtained in addition to the effects described in the above (1). That is, in the present invention, since the ventilation fan functions as an intake fan for taking in outdoor air, fresh outdoor air can be directly taken into the room by the intake fan, and the indoor air Cleanliness is increased. In addition, the introduction of the outdoor air into the room raises the indoor pressure and suppresses the intrusion of contaminated air from other rooms into the room, thereby further increasing the cleanliness of the room.

(3) According to the air conditioner with a ventilation function according to the third invention of the present application, the following specific effects can be obtained in addition to the effects described in the above (1). That is, according to the present invention, the ventilation fan functions as an exhaust fan that exhausts indoor air. Therefore, the exhaust fan can reliably discharge indoor contaminated air to the outside and can reduce the amount of contaminated air. The room pressure is reduced with the discharge, and the contaminated air in the room is prevented from diffusing into other rooms, so that the air cleanliness of the other rooms is also maintained well.

(4) According to the air conditioner with a ventilation function according to the fourth invention of the present application, the following specific effects can be obtained in addition to the effects described in the above (1). That is, in the present invention, a ventilation path switching member for switching the ventilation path of the ventilation fan is provided, and the function of the ventilation fan is changed by switching operation of the ventilation path switching member. Since it is configured to be able to select between the exhaust fan and the exhaust fan to be discharged, the indoor resident operates the ventilation path switching member according to the degree of contamination of the air in the own room and other rooms, and operates the ventilation fan. Is used as an intake fan or an exhaust fan, whereby the air cleanliness of both the own room and other rooms can be maintained well.

(5) According to the air conditioner with a ventilation function according to the fifth invention of the present application, the following specific effects can be obtained in addition to the effects described in the above (1). That is, in the present invention, the ventilation fan includes two fans, an intake fan that takes in outdoor air and an exhaust fan that exhausts room air, and the internal passages of the ventilation duct are each independently placed outside the room. It is formed in two divided passages facing each other, and each of the divided passages is connected to the intake fan and the exhaust fan respectively, so that outdoor air is introduced into the room and indoor air is discharged from the room. Is performed at the same time, the indoor pressure is maintained at substantially the atmospheric pressure, and the stabilization of the ventilation air volume is promoted. In addition, since the indoor pressure is maintained at substantially the atmospheric pressure, the amount of work applied to the intake fan and the exhaust fan is reduced, so that the amount of electricity used in driving the fan can be reduced, and the amount of power applied to each fan can be reduced. It is also easy to increase the amount of work to increase the ventilation air volume.

(6) According to the air conditioner with a ventilation function according to the sixth invention of the present application, the following specific effects can be obtained in addition to the effects described in the above (5). That is, in the present invention, a total heat exchanger is installed inside the air conditioner indoor unit, and total heat exchange is performed between outdoor air introduced from outside and indoor air discharged from the room in the total heat exchanger. Therefore, the heat or cold heat lost due to the ventilation in the room is recovered by the total heat exchange, so that the thermal efficiency of the entire system is improved and the running cost can be reduced.

(7) According to the air conditioner with a ventilation function according to the seventh invention of the present application, the following specific effects can be obtained in addition to the effects described in the above (6). That is, in the present invention, the total heat exchange between the outdoor air and the indoor air is stopped, and the introduction of the outdoor air, the discharge of the indoor air, or the introduction of the outdoor air and the discharge of the indoor air are selectively performed. Since it is configured to be able to execute, if it is desired to use the temperature and humidity of the outdoor air for indoor temperature control, for example, indoor temperature or indoor humidity is excessively increased due to cooking etc. When it is desired to lower the temperature or the indoor humidity, the outdoor air may be introduced by a ventilation fan. Therefore, for example, when the window of the room is opened to introduce the outside air, the leakage of the room sound to the outside and the entry of the outside sound into the room are both prevented.

(8) According to the air conditioner with a ventilation function according to the eighth aspect of the present invention, the following specific effects can be obtained in addition to the effects described in the above (7). That is, in the present invention, only the introduction of the outdoor air is performed when the total heat exchange is not performed, and the entire passage of the ventilation duct is used as the intake passage. The air resistance is reduced, so that the drive input to the ventilation fan due to the introduction of outdoor air is reduced, and the running cost can be reduced.

(9) According to the air conditioner with a ventilation function according to the ninth invention of the present application, the following specific effects can be obtained in addition to the effects described in the above (7). That is, according to the present invention, only the indoor air is discharged when the total heat exchange is not performed, and the entire passage of the ventilation duct is used as the exhaust passage. The air resistance is reduced, and the drive input to the ventilation fan accompanying the discharge of the indoor air is reduced accordingly, so that the running cost can be reduced.

(10) According to the air conditioner with a ventilation function according to the tenth invention of the present application, the above (2), (4),
In addition to the effects described in (5), (6), (7) or (8), the following specific effects can be obtained. That is, according to the present invention, an indoor temperature sensor that detects an indoor temperature and an outdoor temperature sensor that detects an outdoor temperature are provided, and the relationship between the indoor temperature, the outdoor temperature, and the set temperature is expressed as “outdoor temperature ≦ set temperature <
In the case of the relationship of “indoor temperature”, “set temperature ≦ outdoor temperature <indoor temperature”, “indoor temperature <set temperature ≦ outdoor temperature” or “indoor temperature <outdoor temperature ≦ set temperature”, that is, in each of winter and summer If the temperature and humidity of the outdoor air can be used for indoor temperature control with respect to the set temperature condition, this is automatically determined and the outdoor heat is exchanged without performing total heat exchange between the outdoor air and the indoor air. Since only air is introduced and used for indoor temperature control, power consumption during heating operation or cooling operation can be reduced as much as the temperature and humidity of outdoor air can be used. Can reduce running costs associated with heating and cooling.

(11) According to the air conditioner with a ventilation function according to the eleventh invention of the present application, the following specific effects can be obtained in addition to the effects described in the above (10). That is, in the present invention, the relationship among the three of the indoor temperature, the outdoor temperature, and the set temperature is “outdoor temperature ≦ set temperature <room temperature”,
Any other than the relationship of “set temperature ≦ outdoor temperature <indoor temperature”, “indoor temperature <set temperature ≦ outdoor temperature” or “indoor temperature <outdoor temperature ≦ set temperature”, that is, set temperature conditions in winter and summer respectively In contrast, if the temperature and humidity of the outdoor air cannot be used for indoor temperature control, this is automatically determined, and total heat exchange between the outdoor air and the indoor air is performed to eliminate waste associated with ventilation. Since the heat is recovered, power consumption during the heating operation or the cooling operation can be reduced by the amount of the recovered waste heat, and the running cost associated with the heating and cooling can be reduced.

(12) According to the air conditioner with a ventilation function according to the twelfth invention of the present application, the above (10) or (1)
The following specific effects can be obtained in addition to the effects described in 1). That is, in the present invention, the relationship between the indoor temperature, the outdoor temperature, and the set temperature is “outdoor temperature ≦ set temperature <indoor temperature”, “set temperature ≦ outdoor temperature <indoor temperature”, and “indoor temperature <set temperature”. ≦ outdoor temperature ”or“ indoor temperature <outdoor temperature ≦ set temperature ”, that is, for the set temperature conditions in winter and summer, the temperature and humidity of the outdoor air are used for indoor temperature control. If not,
This is automatically determined to reduce the amount of ventilation in the room compared to the case where the temperature and humidity of the outdoor air can be used for controlling the temperature in the room. Power consumption during cooling operation can be reduced, and running costs associated with heating and cooling can be reduced.

(13) According to the air conditioner with a ventilation function according to the thirteenth invention of the present application, the following specific effects can be obtained in addition to the effects described in the above (12). That is, in the present invention, since the ventilation amount is set to “0 to 30 m ³ / hr” per one room occupant, the room ventilation amount is based on the number of room occupants and the number of room occupants is The minimum ventilation rate that can keep the indoor air cleanliness optimal is set, and as a result, the ventilation air conditioning that minimizes the power consumption of the air conditioning is realized.

(14) According to the air conditioner with a ventilation function according to the fourteenth invention of the present application, the above (2), (4),
In addition to the effects described in (5), (6), (7) or (8), the following specific effects can be obtained. That is, in the present invention, an indoor temperature sensor for detecting the indoor temperature, an outdoor temperature sensor for detecting the outdoor temperature, an indoor humidity sensor for detecting the indoor humidity, and an outdoor humidity sensor for detecting the outdoor humidity are provided.
The relationship between the outdoor air enthalpy, the indoor air enthalpy, and the air enthalpy at the set temperature and the set humidity is expressed as "outdoor air enthalpy ≤ air enthalpy at the set temperature / humidity <indoor air enthalpy" and "set temperature / humidity". The relationship between the air enthalpy ≤ outdoor air enthalpy <indoor air enthalpy>, "indoor air enthalpy <air enthalpy at the set temperature and humidity ≤ outdoor air enthalpy" or "indoor air enthalpy <outdoor air enthalpy ≤ air enthalpy at the set temperature and humidity" In other words, if the temperature and humidity of the outdoor air can be used for indoor temperature control for the set temperature and humidity conditions in winter and summer, this is automatically determined, and the outdoor air and indoor air are Introduce only outdoor air without performing total heat exchange between the two, and use this for indoor temperature control. Therefore, the power consumption during the heating operation or the cooling operation can be reduced by the amount of the temperature and humidity of the outdoor air that can be used, and the running cost associated with the heating and cooling can be reduced.

(15) According to the air conditioner with a ventilation function according to the fifteenth invention of the present application, the following specific effects can be obtained in addition to the effects described in the above (14). That is, according to the present invention, the relationship between the outdoor air enthalpy, the indoor air enthalpy, and the air enthalpy at the set temperature and the set humidity is represented by "outdoor air enthalpy ≦ air enthalpy at the set temperature / humidity <indoor air enthalpy". ,
"Air enthalpy of set temperature / humidity ≤ outdoor air enthalpy <indoor air enthalpy", "room air enthalpy <
When the temperature and humidity are not in the relationship of "air enthalpy of set temperature and humidity ≤ outdoor air enthalpy" or "indoor air enthalpy <outdoor enthalpy of air ≤ air enthalpy of set temperature and humidity", that is, for the set temperature and humidity conditions in winter and summer If the temperature and humidity of the outdoor air cannot be used for indoor temperature control, this is automatically determined, and total heat exchange between the outdoor air and the indoor air is performed to reduce waste heat associated with ventilation. Since the heat is recovered, the power consumption during the heating operation or the cooling operation can be reduced by the amount of the recovered waste heat, and the running cost associated with the heating and cooling can be reduced.

(16) According to the air conditioner with a ventilation function according to the sixteenth invention of the present application, the above (14) or (1)
The following specific effects can be obtained in addition to the effects described in 5). That is, according to the present invention, the relationship between the outdoor air enthalpy, the indoor air enthalpy, and the air enthalpy at the set temperature and the set humidity is represented by "outdoor air enthalpy ≦ air enthalpy at the set temperature / humidity <indoor air enthalpy". , "Air enthalpy at set temperature / humidity ≤ outdoor air enthalpy <indoor air enthalpy", "indoor air enthalpy <air enthalpy at set temperature / humidity ≤ outdoor air enthalpy" or "indoor air enthalpy <outdoor air enthalpy ≤ set temperature / humidity If the relationship is other than the “air enthalpy”, that is, if the temperature and humidity of the outdoor air cannot be used for indoor temperature control for the set temperature and humidity conditions in winter and summer, this is automatically determined. To reduce the amount of ventilation in the room compared to when the temperature and humidity of the outdoor air can be used to control the temperature in the room. As a result, power consumption during the heating operation or the cooling operation can be reduced by an amount corresponding to the decrease in the ventilation, and the running cost associated with the heating and cooling can be reduced.

(17) According to the air conditioner with a ventilation function according to the seventeenth aspect of the present invention, the following specific effects can be obtained in addition to the effects described in the above (16). That is, according to the present invention, the ventilation amount is set to “0 to 30 m ³ / hr” per one room occupant. The number of ventilations is set to the minimum ventilation amount that can keep the indoor air cleanliness optimal in number, and as a result, the ventilation air conditioning that minimizes the power consumption of the air conditioning is realized.

(18) According to the air conditioner with a ventilation function according to the eighteenth aspect of the present invention, (13) or (1)
The following specific effects can be obtained in addition to the effects described in 7). That is, in the present invention, the number of indoor occupants is detected by manual input. Therefore, the number of indoor occupants can be obtained with simple equipment, and the overall cost of the apparatus can be reduced by the reduction in equipment cost. Cost reduction is promoted.

(19) According to the air conditioner with a ventilation function according to the nineteenth invention of the present application, the above (13) or (1)
The following specific effects can be obtained in addition to the effects described in 7). That is, in the present invention, since the number of indoor occupants is detected by the sensor, the number of indoor occupants is automatically obtained without causing inconvenience to the indoor occupants. Operability is improved.

(20) According to the air conditioner with a ventilation function according to the twentieth invention of the present application, the above (10), (1)
In addition to the effects described in (1), (12), (18) or (19), the following specific effects can be obtained. That is, in the present invention, when starting the air-conditioning operation, only the introduction of the outdoor air is performed until the indoor temperature and the outdoor temperature become substantially equal, and the air-conditioning operation is performed after the indoor temperature and the outdoor temperature become substantially equal. Since the air conditioning operation is started, the power consumption in the initial operation of the air conditioning operation is reduced by an amount corresponding to avoiding the air conditioning operation in a state where the difference between the indoor temperature and the outdoor temperature is large (that is, a state in which the operation load is large). In addition, running costs associated with air conditioning can be reduced.

(21) According to the air conditioner with a ventilation function according to the twenty-first invention of the present application, the above (14), (1)
5), (16), (17), (18) and (19) have the following specific effects in addition to the effects described in (19).
That is, in the present invention, when starting the air-conditioning operation, only the introduction of the outdoor air is performed until the indoor air enthalpy and the outdoor air enthalpy are substantially equal, and the indoor air enthalpy and the outdoor air enthalpy are substantially equal. Since the air-conditioning operation is started later, the consumption of the air-conditioning operation in the initial stage of the air-conditioning operation is reduced by the amount that the air-conditioning operation in the state where the difference between the indoor air enthalpy and the outdoor air enthalpy is large (that is, the operation load is large) is avoided. The electric power is reduced, and the running cost associated with air conditioning can be reduced.

(22) According to the air conditioner with a ventilation function according to the twenty-second invention of the present application, the above (2), (4),
(5), (6), (7), (8), (9), (10),
(11), (12), (13), (14), (15),
In addition to the effects described in (16), (17), (18), (19), (20) and (21), the following specific effects can be obtained. That is, in the present invention, the outdoor air from the outdoor is caused to flow to the upstream side of the air conditioner indoor unit, and the temperature of the intake air is adjusted, and then the air is blown into the room. As compared with the case where the air is blown out, the change in the indoor temperature due to the blowout of the outdoor air is small, and the ventilation and air conditioning with high comfort is realized accordingly.

(23) According to the air conditioner with a ventilation function according to the twenty-third invention of the present application, the above (2), (4),
(5), (6), (7), (8), (9), (10),
(11), (12), (13), (14), (15),
(16), (17), (18) (19), (20),
The following specific effects can be obtained in addition to the effects described in (21) or (22). That is, in the present invention, since the dust filter is provided in the outdoor air circulation path in the air-conditioning indoor unit, even if pollen is floating in the outdoor air, for example, the outdoor air is introduced into the pollen. In case, it is collected and removed by the above dust filter,
The pollen does not enter the room together with the outdoor air, and the cleanliness of the indoor air is further improved.

(24) According to the air conditioner with a ventilation function according to the twenty-fourth invention of the present application, the above (2), (4),
(5), (6), (7), (8), (9), (10),
(11), (12), (13), (14), (15),
(16), (17), (18) (19), (20),
The following specific effects can be obtained in addition to the effects described in (21) or (22). That is, in the present invention, since the NOx removal filter is provided in the flow path of the outdoor air in the air-conditioning indoor unit, for example, NOx is contained in the outdoor air.
x even if exhaust gas containing x
Since x is trapped and removed by the NOx removal filter when the outdoor air is introduced, NOx does not enter the room together with the outdoor air, thereby further improving the cleanliness of the indoor air.

(25) According to the ventilation / air-conditioning system according to the twenty-fifth invention of the present application, the second, fourth, fifth, sixth, seventh, eighth, ninth, tenth, eleventh, and eleventh are described. 12, first
3, 14th, 15th, 16th, 17th, 18th, 1st
The ninth, twentieth, twenty-second, twenty-second, twenty-third or twenty-fourth air-conditioning indoor units are installed, and the control of each of these air-conditioning indoor units is performed in an integrated manner. An improvement in air cleanliness and comfort in a plurality of rooms equipped with an air-conditioning indoor unit can be realized with low equipment costs and low construction costs.

[0061]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, an air conditioner with a ventilation function and a ventilation and air conditioning system according to the present invention will be specifically described based on preferred embodiments.

First Embodiment FIG. 1 shows an air-conditioning indoor unit 2 (corresponding to an “air-conditioning indoor unit” in the claims) disposed in a ceiling space 102 on the upper surface side of a ceiling 101. Is shown. The indoor unit 2 has a casing 9 having a lower surface opened and a lower surface opening facing the room 8 from the ceiling back 102 side, and a blow-out / suction grill for closing an opening of the casing 9 from the room 8 side. 1
In a space surrounded by 0, a temperature adjustment unit 11 for adjusting the temperature of room air and a ventilation unit 1 for ventilating the room
2 are arranged side by side.

The temperature adjusting unit 11 has a conventional general configuration, and as shown in FIG. 2, a heat exchanger 20 arranged facing the suction port 13 of the blow-out / suction grill 10 and a temperature control unit. The room air sucked from the suction port 13 is exchanged with the refrigerant in the heat exchanger 20 to adjust the temperature, and the temperature is adjusted as temperature-adjusted air from the outlet 14 to the room. It blows out to the 8 side.

The ventilation unit 12 is disposed on the side of the temperature adjustment unit 11 in the casing 9 and is driven by a motor 23 (in this embodiment, the ventilation fan 21 is an intake fan). Function only as). The outlet side passage 65 of the ventilation fan 21 is connected to the outlet / suction grill 1.
The ventilating fan 21 faces the outside through the ventilation duct 3 disposed through the building wall 103 while communicating with the outlet port 15 formed at zero. .

A filter 17 is provided at an end of the ventilation duct 3 near the suction side passage 61. As the filter 17, for example, a dust collection filter that collects and removes dust in the air and a NOx removal filter that collects and removes NOx in exhaust gas of automobiles diffused in the air are employed.

In the indoor unit 2 having the above configuration, the temperature of the indoor unit 8 is adjusted by the temperature adjusting unit 11 as described above, and the ventilation fan 21 of the ventilation unit 12 is operated as necessary. in which it is introduced outdoor air a ₁ through the ventilation duct 3 can be ventilated action of the blow-out opening 15 indoor 8 by blown into the passenger compartment 8 by. In this way, by performing the temperature control of the room by the temperature control unit 11 and the ventilation of the room 8 by the ventilation unit 12, the air cleanliness of the room and the air cleanliness level of the room are reduced as compared with a case without a ventilation function, for example. Comfort will be enhanced.

In this case, as described above, since the filter 17 for collecting dust or removing NOx is provided in the flow path of the outdoor air A ₁ introduced by the ventilation fan 21, for example, the outdoor air A Toka dust such as pollen are suspended in _1, even when the NOx components in the exhaust gas is mixed, these dust and NOx components by the filter 17 in the process of introducing the outdoor air a ₁ Since the air is trapped and removed and is prevented from entering the room 8, the cleanliness and comfort of the room air are further improved.

Further, since the ventilation fan 21 is made to function as an intake fan, fresh outdoor air A ₁ can be directly taken into the room by the ventilation fan 21 and the air to the room 8 can be taken in. Outdoor air A ₁
As a result, the indoor pressure is increased, and contaminated air from other rooms is prevented from entering the room 8. As a result of these actions, the air cleanliness in the room is further increased.

Further, as described above, since the indoor unit 2 is constructed by integrally incorporating the temperature adjustment unit 11 and the ventilation unit 12, for example, as in the related art, the indoor unit for temperature adjustment is used. As compared with the case where two devices, ie, a ventilation fan and a ventilation fan, are provided, the cost of the device itself can be reduced and the installation work can be simplified.

Further, when the indoor unit 2 is of a recessed ceiling type as in this embodiment, it is possible to reduce the space required for disposing the equipment relative to the indoor space, and to improve the interior characteristics of the indoor room 8. Will be improved. The indoor unit 2 may be, for example, a ceiling-mounted type in which the indoor unit 2 is suspended from the ceiling 101 in addition to the ceiling-mounted type as in this embodiment.
Since the installation work of the indoor unit 2 and the equipment such as the ventilation duct 3 becomes easier, the construction cost can be reduced.

By the way, as shown in FIG. 3, the indoor unit 2 has a more advantageous effect when applied to a multi-room multi-system ventilation air conditioning system. That is, this ventilation air-conditioning system includes an outdoor unit 1 arranged outside the room and the indoor units 2, 2,... Arranged in each room of the building.
It is composed of The ventilation units 12 of the indoor units 2, 2,... Are exposed to the outside of the room via short single ventilation ducts 3, respectively. The temperature adjustment units 11 of the indoor units 2, 2,... Are connected to the outdoor unit 1 via refrigerant pipes 5, 5,. In addition, independent refrigerant circulation circuits are formed, and each room can be independently cooled or heated. Similarly, each room can be independently ventilated.

As described above, one outdoor unit 1 and a plurality of indoor units 2, 2,.
・ When a ventilation air-conditioning system is configured with the above, for example, the conventional "ventilation air-conditioning system combining a ceiling-mounted indoor unit and a ceiling-mounted ventilation fan" or "multi-room multi-system and duct central ventilation system "Ventilation and temperature control" can be controlled by a single system without separate systems like "combined ventilation and air conditioning system", and long duct piping like "duct central ventilation and air conditioning system" The construction cost can be reduced due to the fact that no air conditioning is required, and the air cleanliness and comfort of multiple rooms can be improved with low equipment cost. It will be further promoted.

The ventilation and air conditioning system has the first
It goes without saying that not only the indoor unit 2 in the embodiment described above but also the indoor unit 2 in each embodiment described below can be applied.

In the following description of each embodiment, the same components as those of the indoor unit 2 in the first embodiment are denoted by the same reference numerals as those of the components in FIG. The description is omitted.

Second Embodiment FIG. 4 shows an indoor unit 2 according to a second embodiment of the present invention.
(A top view from the room 8 side). This indoor unit 2
Is configured by incorporating a temperature adjustment unit 11 and a ventilation unit 12 in a single casing 9 like the indoor unit 2 in the first embodiment. The difference from the indoor unit 2 is that, in the indoor unit 2 of the first embodiment, the ventilation fan 21 functions as an intake fan, whereas in the indoor unit 2 of the second embodiment, Is the ventilation fan 21
Is made to function as an exhaust fan.

Therefore, in the indoor unit 2 of this embodiment, the indoor air A
Numeral ₂ is drawn from the suction port 16 provided in the blow-out / suction grill 10 and discharged to the outside through the ventilation duct 3 so that the room 8 is ventilated.

In the indoor unit 2 of this embodiment, in addition to obtaining the same effects as those of the indoor unit 2 of the first embodiment, the contaminated air in the indoor 8 is reliably discharged outside by the ventilation fan 21. In addition to being able to discharge, the discharge of the contaminated air reduces the indoor pressure and prevents the contaminated air in the room from being diffused to other rooms, and the air cleanliness of the other rooms is well maintained. An effect can be obtained.

Third Embodiment FIG. 5 shows an indoor unit 2 according to a third embodiment of the present invention.
Is shown. The indoor unit 2 of this embodiment is configured such that the ventilation fan 21 functions as an exhaust fan, similarly to the indoor unit 2 of the second embodiment. The suction of the room air into the fan 21 is performed by the suction port 13 on the temperature control unit 11 side.
This is done through the. Note that the effects of the indoor unit 2 of this embodiment are the same as those of the above-described second embodiment, and therefore description thereof will be omitted.

Fourth Embodiment FIG. 6 shows an indoor unit 2 according to a fourth embodiment of the present invention.
Is shown. The indoor unit 2 is configured by incorporating the temperature adjustment unit 11 and the ventilation unit 12 in a single casing 9, and the ventilation unit 12
, A single ventilation fan 21 is arranged, and such a basic configuration is the same as that of the indoor unit 2 in each of the first to third embodiments. However, in the indoor unit 2 of this embodiment, unlike the arrangement of the above embodiments, the ventilation fan 21 can be selectively made to function as an intake fan or an exhaust fan.

More specifically, switching dampers 31A and 31B are disposed on the suction side passage 61 side of the ventilation fan 21 and the switching damper 32 is disposed on the outlet side passage 65 side to switch the ventilation path. The ventilation fan 21 can be selectively used as an intake fan or an exhaust fan.

That is, the switching dampers 31A, 32B
Corresponds to the “ventilation path switching member” in the claims. In the switching position shown by the solid line in FIG. 6, the suction side passage 61 of the ventilation fan 21 is connected to the ventilation duct 3. At the same time as the connection, the communication between the suction side passage 61 and the suction port 13 is cut off. On the other hand, at the switching position shown by a chain line, the suction side passage 61 of the ventilation fan 21 is connected to the suction port 13 and at the same time, the communication between the suction side passage 61 and the ventilation duct 3 is cut off. I have.

The switching damper 32 corresponds to the "ventilation path switching member" in the claims, and opens the outlet side passage 65 facing the outlet 15 at the switching position shown by the solid line in FIG. In the switching position shown by a chain line, the outlet side passage 65 is shut off.

[0083] Therefore, when introducing the outdoor air A ₁ from the outdoor to function the ventilation fan 21 as an intake fan is set to the switching position a solid line shown above switching dampers 31A, 31B, 32 together . Then, the outdoor air A ₁ flowing from the ventilation duct 3, after being sucked into the ventilation fan 21 from the suction side passage 61 is blown out to the indoor side through the outlet 15 from the outlet side passage 65 . The outlet 15 is provided with a filter 17.

[0084] In contrast, when discharging the room air A ₂ outdoors to function the ventilation fan 21 as the exhaust fan is each switching dampers 31A, 31B, 3
2 are both set to the switching positions shown by chain lines. Then, the room air A ₂ drawn into the suction passage 61 through the suction port 13 is drawn into the ventilation fan 21 and then discharged outside through the ventilation duct 3.

According to the indoor unit 2 having such a configuration, the same effects as those of the above embodiments can be obtained, and in addition, the switching dampers 3 for switching the ventilation passage of the ventilation fan can be obtained.
1A, 31B, and 32, and each of the switching dampers 31A, 31A,
31B and 32 are operated to switch the ventilation fan 21.
The function can be selected between an intake fan that takes in outdoor air and an exhaust fan that exhausts indoor air. Each of the switching dampers 31A, 31
By appropriately operating the ventilation fans 21 as intake fans or exhaust fans by appropriately operating 1B and 32, the air cleanliness of both the own room and other rooms can be maintained well.

Fifth Embodiment FIG. 7 shows an indoor unit 2 according to a fifth embodiment of the present invention.
Is shown. In the indoor unit 2 according to this embodiment, each of the indoor units 2 in each of the above embodiments includes one ventilation fan 21 and functions as an intake fan, an exhaust fan, or an intake / exhaust fan. In contrast, two ventilation fans 21 and 22 are provided, and one ventilation fan 21 is provided as an exhaust fan and the other ventilation fan 2 is provided.
2 has dedicated functions as intake fans. In addition, in response to the dedicated use of each of the fans 21 and 22, the internal passage of the ventilation duct 3 is partitioned by a partition wall 46.
Into two passages 3A and 3B, and the first passage 3A divides the first passage 3A into the suction passage 6 of the ventilation fan 22.
2 and the second branch passage 3B is connected to the ventilation fan 2
The first passages 65 are in communication with each other. still,
The outlet side passage 66 of the ventilation fan 22 communicates with the room 8 via the outlet 15 provided with the filter 17, and the suction side passage 61 of the ventilation fan 21 is connected to the inlet 13 of the temperature control unit 11. Through the room 8.

According to the indoor unit 2 having such a configuration, since the ventilation fan 21 and the ventilation fan 22 are simultaneously driven by the motor 23, the outdoor air A ₁ is supplied to the first branch passage of the ventilation duct 3. 3A through the ventilation fan 22
While being blown into the room 8 from the outlet 15 and the room air A ₂ is supplied to the temperature adjusting unit 1.
The air is sucked into the ventilation fan 21 from the suction port 13 and is discharged outside through the second branch passage 3B of the ventilation duct 3. By performing such indoor ventilation together with the indoor temperature adjustment by the temperature adjustment unit 11, the indoor air cleanliness is maintained satisfactorily and the indoor comfort is ensured.

In this case, the introduction of the outdoor air into the room and the discharge of the indoor air from the room are performed at the same time, so that the pressure in the room is almost maintained at the atmospheric pressure, thereby stabilizing the ventilation air volume. Will be. Further, since the indoor pressure is maintained at substantially the atmospheric pressure, the upper ventilation fans 21 and
2, the amount of work required for driving the fans 21 and 22 can be increased to increase the amount of ventilation air. .

Sixth Embodiment FIG. 8 shows an indoor unit 2 according to a sixth embodiment of the present invention.
Is shown. In the indoor unit 2 of this embodiment, a total heat exchanger 25 is disposed in a portion of the ventilation unit 12 of the indoor unit 2 according to the fifth embodiment, and in the total heat exchanger 25, between the indoor air and the outdoor air. In this case, heat is exchanged to recover waste heat accompanying ventilation. The total heat exchanger 25 is a so-called fixed type total heat exchanger in which two types of air flow paths whose air flow directions are orthogonal to each other are alternately arranged in a stacked state. Heat is exchanged between outdoor air flowing through the air passage and indoor air flowing through the other air flow path.

The specific configuration in the case where the above total heat exchanger 25 is provided is as shown in FIG. That is, one of the air passages of the total heat exchanger 25 is made to face the outlet side passage 65 of the ventilation fan 21 functioning as an exhaust fan, and the outlet side passage 65 is connected to the ventilating side passage 65 through the air passage. The duct 3 communicates with the first branch passage 3A. Further, the other air flow path of the total heat exchanger 25 is made to face the blow-out side passage 66 of the ventilation fan 22 functioning as an intake fan, and the blow-out side path 66 is connected to the air flow path through the air flow path. It communicates with the outlet 15. Further, the suction side passage 62 of the ventilation fan 22 communicates with the second branch passage 3B of the ventilation duct 3.

[0091] According to such a configuration of the indoor unit 2, the ventilation of the room by the discharge of the outdoor deployment and indoor air A ₂ to the room of the outdoor air A ₁ is streamlined A ₁ respectively in FIG. 8, A ₂ This is performed via a route as shown by. In this case, the total heat exchanger 2
In 5, by total heat exchange between the room air A ₂ that is discharged from the outdoor air A ₁ and the indoor introduced from the outdoor is performed, heat is lost by the ventilation chamber (during heating) or cold (cooling ) Is recovered, so that the thermal efficiency of the whole system is improved and the running cost of ventilation and air conditioning can be reduced.

[0092] In the indoor unit 2 of this embodiment as well,
Needless to say, in addition to the effects specific to this embodiment as described above, the same effects as in the above embodiments can be obtained.

Seventh Embodiment FIG. 9 shows an indoor unit 2 according to a seventh embodiment of the present invention.
Is shown. The indoor unit 2 according to this embodiment uses the configuration of the indoor unit 2 according to the sixth embodiment as it is, and is provided with a switching damper 33 described below.

The switching damper 33 corresponds to a “ventilation path switching member” in the claims, and functions as an intake fan in the two air flow paths of the total heat exchanger 25. The air passage facing the outlet side passage 66 of the ventilation fan 22 is opened and closed.

[0095] Thus, in the state where the switching damper 33 is set to a switching position to the solid line shown in the figure, the outdoor air duct above the ventilation as shown by flow lines A ₁ to be sucked by the ventilating fan 22 After being introduced from the second branch passage 3B of the third outlet 3, it passes through the total heat exchanger 25 and the outlet 15
A blows out of the room.

On the other hand, when the switching damper 33 is set to the switching position shown by a chain line in the same drawing, the air outlet 15B is opened, and the outdoor air sucked by the ventilation fan 22 flows. Although introduced from the second minute passage 3B of the ventilation duct 3 as shown by line a _3, since the air flow path of the total heat exchanger 25 is closed by the indoor switching damper 33, the air outlet 1B Is blown out directly into the room.

That is, the indoor unit 2 of this embodiment introduces the outdoor air into the room without performing the total heat exchange between the outdoor air and the room air (in other words, the temperature and humidity of the outdoor air) The ventilation mode can be selected. Therefore, when it is desired to use the temperature and humidity of the outdoor air to adjust the indoor temperature, for example, when the indoor temperature or the indoor humidity is excessively increased due to cooking or the like in the winter and the indoor temperature or the indoor humidity is to be reduced by introducing the outdoor air. is the outdoor air a ₁ by the ventilation fan 22 by setting the switching damper 33 to the switching position of the solid line shown, it is directly introduced into the chamber without causing the total heat exchange between the room air a ₂ good. This solves both the problem of leakage of room sound to the outside and the intrusion of room sound into the room, such as in the case of opening a room window to introduce outside air.

In this embodiment, the outdoor air A
₁ but has been described the case of adopting the ventilation mode to be introduced into the chamber, bypassing the total heat exchanger 25, In addition, for example, the outdoor room air A ₂ is bypassing the total heat exchanger 25 ventilation form as discharged or outdoor air a ₁ and the indoor air a ₂ both are both the total heat exchanger 25,
It is also possible to adopt a ventilation mode in which the air flows by-passing the air.

Further, in the indoor unit 2 of this embodiment, it is needless to say that the same effects as those of the above embodiments can be obtained in addition to the above-described effects unique to this embodiment.

Eighth Embodiment FIGS. 10 and 11 show an indoor unit 2 according to an eighth embodiment of the present invention. This indoor unit 2
Similarly to the indoor unit 2 according to the embodiment, the ventilation unit 12 includes two ventilation fans 21 and 22 and a total heat exchanger 2.
5, and three switching dampers 34, 35, and 36 described below are attached to the basic configuration.
By appropriately switching the switching dampers 34, 35, 36 (each of which corresponds to a "ventilation path switching member" in the claims), one of the ventilation fans 21, 22 can be used.
The function of the ventilation fan 21 can be selected between an intake fan and an exhaust fan. Further, the ventilation fan 22 functions only as an intake fan.

The switching damper 34 is disposed at the boundary between one air flow path and the other air flow path of the total heat exchanger 25. In the switching position shown in FIG. The side passage 65 communicates with one air flow path of the total heat exchanger 25, and the ventilation fan 2
The second outlet passage 66 is communicated with the other air passage of the total heat exchanger 25. On the other hand, in the switching position shown in FIG. 11, the outlet 15B is opened, and the outlet side passage 65 of the ventilation fan 21 and the outlet side passage 66 of the ventilation fan 22 are joined to be connected to the outlet. Connect to the outlet 15B.

The switching damper 35 is disposed at a position of the total heat exchanger 25 near the temperature adjustment unit 11.
In the switching position shown in FIG. 10, the suction side passage 61 of the ventilation fan 21 is connected to the suction port 13 of the temperature control unit 11.
In the switching position shown in FIG. 11, the suction-side passage 61 of the ventilation fan 21 is communicated with one air flow path of the total heat exchanger 25.

The switching damper 36 is arranged at a position near the ventilation duct 3 of the total heat exchanger 25,
In the switching position shown in FIG. 11, the other air flow path of the total heat exchanger 25 is opened to communicate with the outlet side passage 66 of the ventilation fan 22, and in the switching position shown in FIG. The other air passage 25 is closed.

Therefore, each of the switching dampers 34, 35,
When the switch 36 is set to the switching position shown in FIG. 10, the ventilation fan 21 functions as an exhaust fan, and the ventilation fan 22 functions as an intake fan. outdoor air a ₁ introduced from the distribution channel 3A is blown into the room from the air outlet 15A through the other air flow passage of the total heat exchanger 25, also room air a ₂ is one of the total heat exchanger 25 And the air is discharged from the second branch passage 3B of the ventilation duct 3 to the outside through the air flow path of the ventilation duct 3, thereby realizing the ventilation mode in which the introduction of the outdoor air and the discharge of the indoor air are simultaneously performed.

On the other hand, each of the switching dampers 34,
When 35 and 36 are set to the switching positions shown in FIG. 11, both the ventilation fan 21 and the ventilation fan 22 function as intake fans, respectively. Then, the outdoor air A ₁ introduced from the first branch passage 3A of the ventilation duct 3 by the ventilation fan 22 is supplied to the total heat exchanger 2
5 is closed by the switching damper 36, and the air outlet 15B is opened.
And is blown into the room from the outlet 15B as it is. The outdoor air A introduced from the second branch passage 3B of the ventilation duct 3 by the ventilation fan 21 is also provided.
₁ flows into the ventilation fan 21 through one air flow path of the total heat exchanger 25, and is blown out of the ventilation fan 21 into the room through the outlet 15B as it is.

That is, in the state shown in FIG. 11, both the two ventilation fans 21 and 22 function as intake fans, and the respective branch passages 3A and 3B of the ventilation duct 3 both serve as outdoor air introduction passages. It functions as. Therefore, for example, the air resistance at the time of introduction of the outdoor air is lower than when the same ventilation amount is realized only through the first branch passage 3A of the ventilation duct 3 and only by the suction operation of the ventilation fan 22. As a result, the drive input to the ventilation fans 21 and 22 associated with the introduction of outdoor air decreases, and as a result, the running cost associated with ventilation and air conditioning can be reduced.

It is needless to say that, in addition to the effects specific to this embodiment as described above, the same effects as in the above embodiments can be obtained.

Ninth Embodiment FIGS. 12 and 13 show an indoor unit 2 according to a ninth embodiment of the present invention. The indoor unit 2 is provided in the eighth
A ventilation mode in which the indoor unit 2 according to the embodiment performs a total heat exchange between outdoor air and indoor air, and two ventilation fans 2
In contrast to the configuration in which both of the air conditioners 1 and 22 are made to function as intake fans so that a ventilation mode in which only the introduction of outdoor air does not involve total heat exchange can be selected, a ventilation mode in which total heat exchange is performed and The two ventilation fans 21 and 22 are both made to function as exhaust fans, so that both can select a ventilation mode in which only the indoor air is discharged without any total heat exchange.

That is, in the indoor unit 2 of this embodiment, on the side of the ventilation fan 21, the suction side passage 61 of the ventilation fan 21 always faces the suction port 13 of the temperature adjustment unit 11. The outlet passage 65 is connected to the second branch passage 3B of the ventilation duct 3 via one air flow path of the total heat exchanger 25.

On the other hand, on the side of the ventilation fan 22, a switching damper 37 (corresponding to “a ventilation path switching member” in the claims) is provided on the side of the total heat exchanger 25.
When the switching damper 37 is in the switching position shown in FIG. 12, the other air flow path of the total heat exchanger 25 is opened, and the outlet side passage 66 of the ventilation fan 22 is connected to the total heat exchanger 2.
5, and when the switching damper 37 is at the switching position shown in FIG. 13, the switching air damper 37 causes the other air passage of the total heat exchanger 25 to flow. The ventilation duct 3 is closed from the suction port 16 through the suction side passage 62 and the discharge side passage 66 of the ventilation fan 22.
Is formed so as to reach the first branch passage 3A.

Therefore, when the switching damper 37 is set to the switching position shown in FIG. 12, the ventilation fan 21 serves as an exhaust fan and the ventilation fan 22
As an intake fan, respectively function, the outdoor air A ₁ is outlet 1 through the other air flow passage of the total heat exchanger 25 to be introduced from the first minute channel 3A of the ventilation duct 3
5 is blown into the room, and the room air A ₂ passes through one air flow path of the total heat exchanger 25 and is discharged from the second branch passage 3B of the ventilation duct 3 to the outside of the room. A ventilation mode in which room air is simultaneously discharged is realized.

On the other hand, when the switching dampers 37 are set to the switching positions shown in FIG. 13, both the ventilation fan 21 and the ventilation fan 22 function as exhaust fans. And the ventilation fan 2
Room air A ₂ sucked through the suction side passage 62 by 2 is discharged to the outdoor from the first minute channel 3A of the ventilation duct 3. Further, the room air A ₂ sucked through the suction port 13 by the ventilation fan 21 passes through one air flow path of the total heat exchanger 25 and the second branch passage 3B of the ventilation duct 3 From the room.

That is, in the state shown in FIG. 13, both of the two ventilation fans 21 and 22 function as exhaust fans, and the respective branch passages 3A and 3B of the ventilation duct 3 both serve to supply the indoor air A ₂ . It functions as a discharge path. Therefore, for example, the air resistance at the time of exhausting the indoor air is smaller than the case where the same ventilation amount is realized only through the second branch passage 3B of the ventilation duct 3 and only by the discharge operation of the ventilation fan 21. The driving input to each of the ventilation fans 21 and 22 associated with the discharge of the indoor air is reduced, and as a result, the running cost associated with the ventilation and air conditioning can be reduced.

It is needless to say that, in addition to the effects peculiar to this embodiment as described above, the same effects as those in the above embodiments can be obtained.

Tenth Embodiment FIGS. 14 and 15 show an indoor unit 2 according to a tenth embodiment of the present invention. In each of the above embodiments, the indoor unit 2 blows out the outdoor air into the room as it is, or blows out the room after performing the total heat exchange with the room air in the total heat exchanger 25. On the other hand, after performing the total heat exchange between the outdoor air and the indoor air in the total heat exchanger 25, the outdoor air further flows to the upstream side of the temperature adjustment unit 11, and the heat exchanger in the temperature adjustment unit 11 after temperature adjustment at 20, is obtained by the blown out into the room as the temperature conditioned air a ₄ by the temperature adjusting fan 19.

That is, the outlet side passage 65 of the ventilation fan 21 is connected to the second branch passage 3B of the ventilation duct 3 through one air flow path of the total heat exchanger 25,
The outlet side passage 66 of the ventilation fan 22 communicates with the outlet 15 via the other air flow path of the total heat exchanger 25. In this case, the outlet 15
Does not open this directly into the room, but as shown in FIG.
It opens to the upstream side of.

Therefore, the outdoor air A ₁ introduced by the ventilation fan 22 through the first branch passage 3A of the ventilation duct 3 firstly flows between the indoor air A ₂ and the indoor air A ₂ in the total heat exchanger 25. After the total heat exchange is performed, the heat further flows through the outlet 15 to the upstream side of the heat exchanger 20 of the temperature adjusting unit 11, and the temperature is adjusted in the heat exchanger 20, and then the temperature adjusting fan It is blown into the room as the temperature adjusting air A ₄ by 19. Thus, the outdoor air A ₁ as the temperature conditioned air A ₄ by the blown out into the room, for example, the outdoor air A ₁ as compared with a case where blown directly into the room without temperature control, the outdoor air A ₁ Ventilation and air-conditioning with high comfort can be realized with little change in room temperature due to blowing.

Embodiments Regarding Control of Ventilation and Air Conditioning
Although each of the indoor units 2 has a feature also in the software aspect of its operation control, the feature of each of the indoor units 2 is hereinafter referred to as operation control. A description will be given of the case when viewed from the side.

Regarding the operation control, one that changes the form of operation control depending on whether the temperature and humidity of the outdoor air can be used for indoor temperature adjustment and one that cannot be used, and that relates to the setting of ventilation volume. The reduction of

A: Utilization of Temperature and Humidity of Outdoor Air FIG. 16 shows the relationship between the changing state of the indoor temperature and the outdoor temperature in one day in summer and the set temperature during the cooling operation. Here, in the “region C” where the outdoor temperature is higher than the indoor temperature, the temperature and humidity of the outdoor air cannot be used as it is to reduce the cooling load, so that the total heat exchange between the outdoor air and the indoor air is performed. It is advisable to introduce the outdoor air into the room at a reduced temperature, in terms of reducing the cooling load.

On the other hand, “region A”, “region B”, “region D”, and “region E” in which the outdoor temperature is lower than the indoor temperature.
In the above, since the temperature and humidity of the outdoor air can be used as it is to reduce the cooling load, in this case, the total heat exchange is not performed between the outdoor air and the indoor air, and the outdoor air is directly indoors. It is advisable to introduce it in terms of reducing the cooling load.

Similarly, during the heating operation in winter, if the outdoor temperature is lower than the indoor temperature, the temperature and humidity of the outdoor air cannot be used as it is to reduce the heating load. It is advisable to perform a total heat exchange between the two and introduce the outdoor air into the room in a state where its temperature is raised, from the viewpoint of reducing the heating load.

On the other hand, when the outdoor temperature is higher than the indoor temperature, the temperature and humidity of the outdoor air can be used as it is to reduce the heating load. It is advisable to introduce the outdoor air into the room as it is without performing the total heat exchange between them in terms of reducing the heating load.

In the above, the temperature of the outdoor air and the temperature of the indoor air have been considered, but the same can be said when this is viewed in terms of the enthalpy of air relating to the temperature and humidity of air.

From the above considerations, in the present invention, the relationship between the indoor temperature, the outdoor temperature, and the set temperature during the cooling operation in summer is “outdoor temperature ≦ set temperature <indoor temperature” or “set temperature ≦ outdoor temperature”. If "temperature <room temperature",
And the relationship between the outdoor air enthalpy, the indoor air enthalpy and the air enthalpy at the set temperature and the set humidity is “outdoor air enthalpy ≦ air enthalpy at the set temperature / humidity <indoor air enthalpy” or “set temperature / humidity”. If the air enthalpy of the air ≤ the outdoor air enthalpy <the indoor air enthalpy, the relationship between the indoor temperature, the outdoor temperature, and the set temperature during the heating operation in winter is "indoor temperature <set temperature ≤ outdoor temperature" or "indoor In the case of “temperature <outdoor temperature ≦ set temperature”, and the relationship between the outdoor air enthalpy, the indoor air enthalpy, and the air enthalpy at the set temperature and the set humidity is “indoor air enthalpy <air of set temperature / humidity” Enthalpy ≦ outdoor air enthalpy ”or“ indoor air enthalpy <outdoor air enthalpy ≦ set temperature Temperature / humidity air enthalpy '' means that the temperature and humidity of the outdoor air can be used for indoor temperature adjustment for the set temperature and humidity conditions in summer and winter. The outdoor air is directly introduced into the room without performing the total heat exchange between them, thereby reducing the heating load and the cooling load.

On the other hand, when the relationship between the indoor temperature, the outdoor temperature, and the set temperature during the cooling operation in summer is “outdoor temperature ≦ set temperature <indoor temperature” or “set temperature ≦ outdoor temperature <indoor temperature” , And the relationship between the outdoor air enthalpy, the indoor air enthalpy, and the air enthalpy at the set temperature and the set humidity is “outdoor air enthalpy ≦
If the air temperature enthalpy of the set temperature / humidity is less than the indoor air enthalpy or the air enthalpy of the temperature / humidity ≤ the outdoor air enthalpy <the indoor air enthalpy, the indoor temperature, outdoor temperature, and the set temperature during the heating operation in winter When the relationship among the three is “indoor temperature <set temperature ≦ outdoor temperature” or “indoor temperature <outdoor temperature ≦ set temperature”, and the air enthalpy in the outdoor, the indoor air enthalpy, and the air enthalpy in the set temperature and the set humidity If the relationship between the three is other than “indoor air enthalpy <air enthalpy at set temperature / humidity ≤ outdoor air enthalpy” or “indoor air enthalpy <outdoor air enthalpy ≤ air enthalpy at set temperature / humidity”, in winter Temperature and humidity of outdoor air for temperature and humidity set in summer and summer Therefore, the total heat exchange between the outdoor air and the indoor air is performed to collect the waste heat accompanying the ventilation, thereby reducing the power consumption during the heating operation or the cooling operation.

B: Setting of Ventilation Volume In relation to the ventilation volume in the room, if the temperature and humidity of the outdoor air can be used to reduce the cooling load or the heating load in the room, increase the ventilation volume. If it is not available, it is advisable to reduce the ventilation. Also, it is advisable to set the ventilation volume in accordance with the number of indoor occupants.

From this point of view, according to the present invention, when the temperature and humidity of the outdoor air cannot be used for indoor temperature control, that is, during the cooling operation in summer, the indoor temperature, the outdoor temperature, and the set temperature are set. The relationship between the outdoor temperature ≤
Set temperature <Indoor temperature ”or“ Set temperature ≦ Outdoor temperature <
When the temperature is other than "indoor temperature", and the relationship between the outdoor air enthalpy, the indoor air enthalpy, and the air enthalpy at the set temperature and the set humidity is "outdoor air enthalpy ≤ air enthalpy at the set temperature / humidity <indoor air" Enthalpy "or" Air enthalpy at set temperature and humidity "
≦ outdoor air enthalpy <indoor air enthalpy ”, and during a heating operation in winter, the relationship between the indoor temperature, the outdoor temperature, and the set temperature is“ indoor temperature <
Set temperature ≦ outdoor temperature ”or“ indoor temperature <outdoor temperature ≦
If the temperature is other than the “set temperature”, and the relationship between the outdoor air enthalpy, the indoor air enthalpy, and the air enthalpy at the set temperature and the set humidity is “indoor air enthalpy <air enthalpy at the set temperature / humidity ≦ outdoor air” If "enthalpy" or "indoor air enthalpy <outdoor air enthalpy ≤ air enthalpy of set temperature and humidity", the indoor ventilation rate is more than the case where the temperature and humidity of outdoor air can be used for indoor temperature adjustment. Therefore, the power consumption during the heating operation or the cooling operation is reduced.

On the other hand, regarding the setting of the ventilation volume itself,
The amount of ventilation in the room is set to "0 to 30 m
³ / hr ”. As a result, the amount of ventilation in the room is set based on the number of occupants of the room, and is set to the minimum amount of ventilation that can keep the air cleanliness of the room optimal at the number of occupants of the room. Ventilation and air conditioning that can minimize the electric power can be realized.

In this case, when detecting the number of occupants as a reference for setting the ventilation volume, as one method, the number of occupants in the room is detected by manual input, and as another method, the number of occupants in the room is detected by a sensor. It is configured to detect the number of residents. With such a configuration, in the former,
Since the number of indoor occupants can be obtained with simple equipment, cost reduction of the entire apparatus is promoted by the reduction in equipment cost, and in the latter, indoor occupants do not feel inconvenienced Since the number of indoor occupants is automatically obtained, operability associated with air conditioning can be improved.

C: Reduction of Power Consumption at the Beginning of Air-Conditioning Operation When heating or cooling operation is started, if the difference between the indoor temperature and the outdoor temperature is large, the heating load or the cooling load at the beginning of air-conditioning increases accordingly. Since power consumption increases, it is not preferable from the viewpoint of energy saving of ventilation air conditioning. Therefore, in the present invention, when starting the air conditioning operation, until the indoor temperature and the outdoor temperature are substantially equal, or until the indoor air enthalpy and the outdoor air enthalpy are substantially equal, only the introduction of the outdoor air is performed, The air-conditioning operation is started after the indoor temperature and the outdoor temperature become substantially equal. By doing so, the power consumption at the beginning of the air-conditioning operation is reduced by the amount corresponding to the avoidance of the air-conditioning operation in a state where the difference between the indoor temperature and the outdoor temperature is large (that is, a state where the operating load is large). Means that the running costs associated with ventilation and air conditioning can be reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a first embodiment of an air conditioner with a ventilation function according to the present invention.

FIG. 2 is a top view of the air conditioner with a ventilation function shown in FIG. 1 as viewed from the indoor side (in the direction of arrow II).

FIG. 3 is a plan view of a multi-room multi-system ventilation air conditioning system using the air conditioner shown in FIG.

FIG. 4 is a top view of an air conditioner with a ventilation function according to a second embodiment of the present invention, as viewed from the indoor side.

FIG. 5 is a top view of an air conditioner with a ventilation function according to a third embodiment of the present invention, as viewed from the indoor side.

FIG. 6 is a top view of an air conditioner with a ventilation function according to a fourth embodiment of the present invention, as viewed from the indoor side.

FIG. 7 is a top view of a fifth embodiment of the air conditioner with a ventilation function according to the present invention, as viewed from the indoor side.

FIG. 8 is a top view of an air conditioner with a ventilation function according to a sixth embodiment of the present invention, as viewed from the indoor side.

FIG. 9 is a top view of a seventh embodiment of the air conditioner with a ventilation function according to the present invention, as viewed from the indoor side.

FIG. 10 is a top view of an air conditioner with a ventilation function according to an eighth embodiment of the present invention, as viewed from the indoor side.

11 is a state change diagram of the air conditioner with a ventilation function shown in FIG.

FIG. 12 is a top view of a ninth embodiment of an air conditioner with a ventilation function according to the present invention, as viewed from the indoor side.

13 is a state change diagram of the air conditioner with a ventilation function shown in FIG.

FIG. 14 is a top view of a tenth embodiment of the air conditioner with a ventilation function according to the present invention, as viewed from the indoor side.

FIG. 15 is a sectional view taken along line XV-XV in FIG. 14;

FIG. 16 is a correlation diagram between an indoor temperature and an outdoor temperature.

[Explanation of symbols]

1 is an outdoor unit, 2 is an indoor unit, 3 is a ventilation duct, 4 is a communication line, 5 is a refrigerant line, 6 is a refrigerant branch unit, 7 is an outdoor unit, 8 is an indoor unit, 9 is a casing, and 10 is a blow-out unit. Suction grill, 11 is a temperature control unit, 12 is a ventilation unit, 1
3 is an inlet, 14 is an outlet, 15, 15A and 15B are outlets, 16 is an inlet, 17 is a filter, 19 is a temperature adjusting fan, 20 is a heat exchanger, 21 and 22 are ventilation fans, 23 Is a motor, 25 is a total heat exchanger, 31A, 31
B, 32-37 are switching dampers.

Claims (25)

[Claims] A ventilation fan is provided inside a ceiling-mounted or ceiling-mounted air-conditioning indoor unit, and the ventilation fan and the outdoor are connected by a single ventilation duct through which ventilation air flows. An air conditioner with a ventilation function. 2. The air conditioner with a ventilation function according to claim 1, wherein the ventilation fan functions as an intake fan that takes in outdoor air. 3. The air conditioner with a ventilation function according to claim 1, wherein the ventilation fan functions as an exhaust fan for exhausting room air. 4. The intake fan according to claim 1, further comprising a ventilation path switching member for switching a ventilation path of the ventilation fan, wherein the function of the ventilation fan is changed by switching operation of the ventilation path switching member to take in outdoor air. An air conditioner with a ventilation function, characterized in that the air conditioner can be selected between a fan and an exhaust fan for discharging room air. 5. The ventilation fan according to claim 1, wherein the ventilation fan includes two fans: an intake fan that takes in outdoor air, and an exhaust fan that exhausts room air, and the internal passages of the ventilation duct are independent of each other. An air conditioner with a ventilation function, wherein the air conditioner is formed in two branch passages facing the outdoor, and each of the branch passages is connected to the intake fan and the exhaust fan, respectively. 6. The air conditioner according to claim 5, wherein a total heat exchanger is provided inside the air conditioner indoor unit, and between the outdoor air introduced from outside the room and the indoor air discharged from the room in the total heat exchanger. An air conditioner with a ventilation function, which is configured to perform a total heat exchange in the air conditioner. 7. The method according to claim 6, wherein the total heat exchange between the indoor air and the outdoor air is stopped to introduce outdoor air, discharge indoor air, or introduce outdoor air and discharge indoor air. An air conditioner with a ventilation function, characterized in that the air conditioner can be selectively executed. 8. The ventilation function according to claim 7, wherein only indoor air is introduced when total heat exchange is not performed, and all passages of the ventilation duct are used as intake passages. Air conditioner. 9. A ventilating function according to claim 7, wherein only exhaust of room air is performed when total heat exchange is not performed, and all passages of said ventilation duct are used as exhaust passages. Air conditioner. 10. The system according to claim 2, further comprising an indoor temperature sensor for detecting an indoor temperature and an outdoor temperature sensor for detecting an outdoor temperature, wherein the indoor temperature, the outdoor temperature, and the set temperature are determined. The relationship between the three is “outdoor temperature ≦ set temperature <indoor temperature”, “set temperature ≦ outdoor temperature <indoor temperature”, “indoor temperature <set temperature ≦ outdoor temperature” or “indoor temperature <outdoor temperature ≦ set temperature”. An air conditioner with a ventilation function, characterized in that when the relationship is not satisfied, total heat exchange between the outdoor air and the indoor air is not performed and only the outdoor air is introduced. 11. The relationship between the indoor temperature, the outdoor temperature, and the set temperature according to claim 10, wherein a relationship among “outdoor temperature ≦ set temperature <indoor temperature”, “set temperature ≦ outdoor temperature <indoor temperature”, and “indoor temperature” In cases other than the relationship of “temperature <set temperature ≦ outdoor temperature” or “indoor temperature <outdoor temperature ≦ set temperature”, both the outdoor air and the indoor air are allowed to flow through the total heat exchanger, and An air conditioner with a ventilation function characterized by performing a total heat exchange action. 12. The system according to claim 10, wherein the relationship among the indoor temperature, the outdoor temperature, and the set temperature is “outdoor temperature ≦ set temperature <indoor temperature”, “set temperature ≦ outdoor temperature <indoor temperature”, In a case other than the relationship of “indoor temperature <set temperature ≦ outdoor temperature” or “indoor temperature <outdoor temperature ≦ set temperature”, the amount of ventilation in the room is reduced more than in the case of the relationship. Air conditioner with function. 13. The method according to claim 12, wherein the ventilation amount is set to “0 to 30 m ³
/ Hr ", an air conditioner with a ventilation function. 14. An indoor temperature sensor for detecting an indoor temperature, an outdoor temperature sensor for detecting an outdoor temperature, an indoor humidity sensor for detecting an indoor humidity, and an outdoor humidity, according to claim 2, 4, 5, 6, 7, or 8. An outdoor humidity sensor for detecting the outdoor air enthalpy, the indoor air enthalpy, the air enthalpy at the set temperature and the set humidity, and the relationship between the outdoor air enthalpy and the air enthalpy at the set temperature and humidity are as follows. Enthalpy ”,“ air enthalpy at set temperature / humidity ≦ outdoor air enthalpy <indoor air enthalpy ”,“ indoor air enthalpy <air enthalpy at set temperature / humidity ≦ outdoor air enthalpy ”or“ indoor air enthalpy <outdoor air enthalpy ≦ set temperature ”・ In the case of "humidity air enthalpy", the total heat between outdoor air and indoor air Without a 換作, ventilating function the air conditioner which is characterized in that only the introduction of outdoor air. 15. The relationship between the outdoor air enthalpy, the indoor air enthalpy, the air enthalpy at the set temperature and the set humidity, and the outdoor enthalpy at the set temperature and the set humidity are as follows. "Indoor air enthalpy", "Air enthalpy at set temperature / humidity ≤ outdoor air enthalpy <indoor air enthalpy", "Indoor air enthalpy <air enthalpy at set temperature / humidity ≤ outdoor air enthalpy" or "Indoor air enthalpy <outdoor air enthalpy ≤ If it is other than the relationship of `` air enthalpy of the set temperature and humidity '', the outdoor air and the indoor air are both passed through the total heat exchanger to perform the total heat exchange action in the total heat exchanger. Air conditioner with ventilation function. 16. The relationship between the outdoor air enthalpy, the indoor air enthalpy, and the air enthalpy at the set temperature and the set humidity, wherein the outdoor air enthalpy and the air enthalpy at the set temperature and the humidity are as follows. Enthalpy <indoor air enthalpy>, "air enthalpy of set temperature / humidity ≤ outdoor air enthalpy <indoor air enthalpy", "indoor air enthalpy <air enthalpy of set temperature / humidity ≤ outdoor air enthalpy" or "indoor air enthalpy <outdoor air An air conditioner with a ventilation function, characterized in that, when the relationship is other than “enthalpy ≦ air enthalpy of set temperature / humidity”, the amount of indoor ventilation is reduced as compared with the relationship. 17. The method according to claim 16, wherein the ventilation amount is set to “0 to 30 m ³
/ Hr ", an air conditioner with a ventilation function. 18. The air conditioner with a ventilation function according to claim 13, wherein the number of indoor occupants is detected by manual input. 19. The air conditioner with a ventilation function according to claim 13, wherein the number of indoor occupants is detected by a sensor. 20. The method of claim 10, 11, 12, 13, or 18.
Or in 19, when starting the air-conditioning operation, only the introduction of the outdoor air is performed until the indoor temperature and the outdoor temperature become substantially equal, and the air-conditioning operation is started after the indoor temperature and the outdoor temperature become substantially equal. An air conditioner with a ventilation function. 21. The method of claim 14, 15, 16, 17, or 18.
Or, in 19, when starting the air-conditioning operation, only the introduction of the outdoor air is performed until the indoor air enthalpy and the outdoor air enthalpy are substantially equal, and the air conditioning is performed after the indoor air enthalpy is substantially equal to the outdoor air enthalpy. An air conditioner with a ventilation function characterized by starting operation. 22. The method of claim 2, 4, 5, 6, 7, 8, 9,
10, 11, 12, 13, 14, 15, 16, 17, 1
8. The air conditioner with a ventilation function according to 8, 19, 20 or 21, wherein outdoor air is caused to flow to the upstream side of the air conditioning indoor unit, and the temperature of the outdoor air is adjusted and then blown into the room. 23. The method of claim 2, 4, 5, 6, 7, 8, 9,
10, 11, 12, 13, 14, 15, 16, 17, 1
8. The air conditioner with a ventilation function according to 8, 19, 20, 21, or 22, further comprising a dust collection filter in a flow path of outdoor air in the air conditioning indoor unit. 24. The method of claim 2, 4, 5, 6, 7, 8, 9,
10, 11, 12, 13, 14, 15, 16, 17, 1
8,19,20,21,22 or 23, NOx is present in a flow path of outdoor air in the air-conditioning indoor unit.
An air conditioner with a ventilation function, characterized by having a removal filter. 25. The method of claim 1, 2, 3, 4, 5, 6, 7,
8, 9, 10, 11, 12, 13, 14, 15, 16,
A plurality of air-conditioning indoor units described in 17, 18, 19, 20, 21, 22, 23, or 24 are installed, and the control of each of the air-conditioning indoor units is performed in an integrated manner. Air conditioning system.