JPH05240464A - Air conditioner - Google Patents

Abstract

PURPOSE:To facilitate ventilating and drying operation to improve drying performance and shorten a time necessary for drying, in an air conditioner for a bathroom or the like, which necessitates ventilation. CONSTITUTION:A plurality of rooms are provided with an outlet port 202 respectively and an air-conditioning system is constituted of the air outlet ports 202 connectable to a plurality of air-conditioning ducts 6, indoor machines 2, equipped with a heat exchanger and a fan therein, an outdoor machine 9 and a plurality of ventilating devices 11, 12, 13 for the rooms. Upon bathroom ventilating operation, ventilating operation is effected by the indoor machine while humidity detecting means for detecting bathroom indoor humidity and a humidity at the suction unit of the indoor machine are provided to compare both of them whereby the system is constituted so as to be capable of effecting ventilating and drying operation.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a duct type air conditioner installed in a space including a bathroom and a sanitary room.

[0002]

2. Description of the Related Art Conventionally, air conditioners for sanitary facilities such as bathrooms, washrooms, and toilets have heat sources such as heat pump type, electric heater type, hot water type, etc., and the form is wall hanging, wall buried, ceiling embedded, furniture or other. There are embedded housing facilities, but most of them are for one of the above rooms. For multiple rooms, there are hot water type, heat pump type, and combinations thereof. There is a hot water type in which hot water pipes are arranged in a house and a fan convector is installed in each of the above rooms, but it is only for heating and cannot be used for cooling. Although there is a multi-type heat pump type, there is no small capacity indoor unit for each room, and an indoor unit for living room is used or air is blown from the indoor unit for living room by an air conditioning duct.

On the other hand, in each of the rooms, ventilation is indispensable by removing water vapor and odor, but when installing a ventilation device, a ventilation device 52 is installed separately from the air conditioner 51 as shown in FIG. In addition to the ON / OFF switch 53 for the air conditioner, the control is also provided for the ventilation device ON / OFF switch 5
4 is installed, or an air conditioner 61 as shown in FIG. 15 is installed. For example, at the time of heating, the air passing through the condenser 62 is sucked from the air-conditioned room, and hot air after heat exchange is sent to the same room, while evaporating. The air passing through the device 63 is also sucked from the room to be air-conditioned, and the cold air after heat exchange is discharged to the outside of the room for ventilation.

Japanese Patent Laid-Open No. 64-28432 discloses a ventilation air conditioner for ventilation and cooling / heating of the entire building.

[0005]

However, the conventional air conditioner described above has the following problems.

In the bathroom, steam is generated due to the use of hot water regardless of the use of the air conditioner in the bathroom.

First, when a ventilation device is separately installed and ventilation for heating operation is required, the operation switch of the ventilation device must be pressed separately from the operation switch of the air conditioner, so that the number of operations is large. ..

Secondly, when an air conditioner equipped with a ventilation function is installed and bathroom ventilation is required, ventilation is performed by the amount of air passing through a gap such as a louver of a bathroom door due to the ventilation performance of the ventilation device. Since the amount is determined, improvement in drying performance by ventilation cannot be expected so much.

Thirdly, when an air conditioner equipped with a ventilation function is installed to perform ventilation while performing heating operation,
As the room temperature rises, the relative humidity in the bathroom drops slightly, but since the air blown by heating is indoor circulating air, the relative humidity gradually rises and the evaporation performance deteriorates. There must be.

Fourth, in the ventilation air conditioner for ventilation and cooling / heating of the entire building, it is difficult to control the individual ventilation volume, and the overall ventilation volume decreases to reduce only the ventilation volume of one room.

Fifthly, in the above-mentioned conventional example, there is no automatic operation control based on the relation between the humidity in the bathroom and the humidity of the air sucked into the indoor unit, and the ventilation or drying operation must be performed manually.
You may have forgotten the operation. Further, the drying operation must be ended manually or by a timer, and if the time is set incorrectly, it takes time and labor to see the state of the bathroom and to perform the operation again.

In view of the above conventional problems, the present invention provides an air conditioner for a room such as a bathroom which requires ventilation and drying, and facilitates ventilation and drying operations and improves ventilation and drying performance. The purpose is.

Another object of the present invention is to perform ventilation or drying operation for discharging moisture in the bathroom without operating the ventilation or drying operation switch when cooling or heating is stopped.

Another object of the present invention is to carry out the drying operation without operating the operation switch in order to improve the drying performance when the drying effect in the bathroom by the ventilation operation is small.

It is another object of the present invention to end the drying operation without performing the drying operation by turning off the operation switch or setting the timer when the drying operation is being performed.

[0016]

According to the present invention, in order to solve the above problems, one of a plurality of rooms is a bathroom, and an air conditioning outlet is provided in each of the plurality of rooms and is connected to the outlet. An indoor unit that has an air conditioner that has an outlet that can be connected to a plurality of air-conditioning ducts and has a heat exchanger and a blower inside, and an outdoor unit and a plurality of ventilation devices for the room. When the ventilation system of the bathroom is operated when the air conditioning operation is stopped by the above, the output means for operating the blower provided in the indoor unit is provided.

Further, the present invention is a humidity detecting means for detecting the indoor humidity of a bathroom, a humidity detecting means for detecting the humidity of indoor unit intake air, and a comparing means for comparing the bathroom humidity detecting means and the indoor unit intake air humidity detecting means. And an output means for performing a ventilation operation of the bathroom when the automatic ventilation / drying operation switch is ON and the bathroom humidity is higher than the indoor unit intake air humidity by the comparing means.

The present invention also provides a comparison means for comparing the bathroom humidity detecting means and the indoor unit intake air humidity detecting means, a timer for measuring the elapsed time from the start of ventilation operation of the bathroom, and an automatic ventilation / drying switch ON for the timer time. When the bathroom humidity is higher than the indoor unit intake air humidity by the comparing means even after a certain period of time, the output means is provided for performing the ventilation operation and the drying operation of the bathroom.

Further, according to the present invention, the comparing means for comparing the bathroom humidity detecting means and the indoor unit intake air humidity detecting means and the comparing means for drying the bathroom when the difference between the bathroom humidity and the indoor unit intake air humidity is a certain value or more. It is provided with an output means for performing operation and bathroom ventilation operation.

[0020]

The operation of the above means is as follows.

According to the present invention, in the air conditioner having a plurality of rooms including the room such as a bathroom which needs ventilation as described above, a ventilation device is separately installed and the bathroom ventilation device is operated during the bathroom ventilation. At the same time, the ventilation performance can be improved by operating the blower of the air conditioner by the control device.

Further, the present invention grasps the humidity in the bathroom and the air in the suction part of the indoor unit, and when the automatic ventilation / drying operation switch is ON and the humidity in the bathroom is higher than the humidity in the suction part of the indoor unit, bathroom ventilation is performed. By performing the operation, it is possible to facilitate the operation of the bathroom ventilation operation and prevent forgetting the operation in case of emergency.

Further, according to the present invention, when the bathroom ventilation operation is started by the above control and the room temperature is low and the drying performance due to the bathroom ventilation operation is not effective, the drying operation by heating is additionally performed to perform drying. The performance can be greatly improved.

Further, according to the present invention, the humidity in the bathroom and the air in the suction part of the indoor unit are grasped, the automatic ventilation / drying operation switch is turned on, and the difference between the humidity in the bathroom and the humidity in the suction part of the indoor unit is a constant value. When the temperature is higher than the above, by performing the drying operation and the bathroom ventilation, the determination of the ventilation operation or the drying operation becomes faster, and the time until the completion of drying can be shortened.

[0025]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS.
Will be explained with reference to.

In the figure, 1 is an air conditioner, 2 is an indoor unit main body, 201 is an inlet of the indoor unit main body, 202 is the same outlet, and a heat exchanger is provided inside the indoor unit main body 1.
Equipped with a blower. Reference numeral 3 is a suction grill, which is connected to the suction opening, and 4 is a blowout body chamber, which is connected to the main body outlet 202. A duct connection port 401 is provided in the blowout body chamber 4, and an electric damper (not shown) is further provided corresponding to each of the connection ports to turn on / off air blown from each connection port. The indoor unit main body 2 and the blowout main body chamber 4 described above are installed, for example, inside the ceiling of the corridor by using hanging bolts or the like from the housing structural material, and the suction grill 3 is similarly installed on the lower surface of the corridor ceiling. Next, reference numeral 5 is a blowout grill chamber, which is provided with a duct connection port 501 on one side surface thereof and a blowout port 502 of the blowout grill chamber on the lower surface thereof.
An air conditioning duct 6 is attached to 01 and is connected to each of the duct connection ports 401 of the blowout body chamber 4.
The outlet grill 7 is connected to the outlet 502 of the outlet grill chamber. Here, the blow-out grill chamber 5 is installed in the ceiling of each room of the washroom, the toilet, and the bathroom in the same manner as the indoor unit body, and the blow-out grill 7 is installed on the bottom surface of the ceiling of each room. Reference numeral 8 denotes a remote controller for the air conditioner 1, which is used to set the operation of each room, the operation mode, and the temperature, and is installed in, for example, a washroom. An outdoor unit 9 is equipped with a compressor, a heat exchanger, a blower, a four-way valve and the like (not shown) inside. The indoor unit body 2 and the outdoor unit are connected by a connection pipe 10.

On the other hand, 11 is a ventilator for a washroom, 12 is a ventilator for a toilet, and 13 is a ventilator for a bathroom, which is installed inside the ceiling of each room and is provided with a blower (not shown) inside the ventilator from a suction grill under the ceiling. The air is sucked in by the air and is discharged to the outside by the ventilation duct connected to the ventilation device. The ventilation devices 11, 12, and 13 are electrically connected to the indoor unit body 2.

Next, the configuration of the sequence circuit diagram in the first embodiment will be described with reference to FIG. Note that the same functions as those in FIGS. 1 and 2 will be described with the same numbers.

In the figure, 2A is an indoor fan motor provided inside the indoor unit main body 2, 4A, 4B and 4C are motors for washrooms, toilets and bathroom dampers provided inside the blowout main body chamber 4, 8A, 8B, and 8C are the toilet, toilet, and bathroom air-conditioning operation switches provided on the remote controller 8, 8D, 8E, and 8F are the ventilation operation switches for the toilet, toilet, and bathroom, and 9A and 9B are outdoor units. 9 is a compressor and an outdoor fan motor provided inside, 11A is a ventilation motor provided inside the toilet ventilation device 11,
2A is a ventilation motor provided inside the toilet ventilation device 12, 13A is a ventilation motor provided inside the bathroom ventilation device 13, 14 is an AC power supply, 15 is an indoor fan motor relay, 16A, 16B , 16C is a damper motor relay, 17 is a compressor / outdoor fan motor relay, and 18 is a control device.

Next, the connection configuration of the sequence circuit shown in FIG. One side of the AC power supply 14 is a toilet, a toilet,
It is connected to the bathroom operation switches 8A, 8B, 8C and ventilation operation switches 8D, 8E, 8F, the indoor fan motor relay 15, the compressor / outdoor fan motor relay 17, and the other is the indoor fan motor 2A and the damper motor. Four
A, 4B, 4C, compressor 9A, outdoor fan motor 9B,
It is connected to the ventilation motors 11A, 12A and 13A. The other end of the washroom operation switch 8A is connected to the other end of the damper motor 4A and the other end of the washroom ventilation motor 11A through a damper motor relay 16A.
The other end of the washroom ventilation operation switch 8D is connected to the other end of the washroom ventilation motor 11A. The other end of the operation switch 8B for the toilet is the toilet ventilation motor 12A.
Is connected to the other end of the damper motor 4B via the other end of the damper motor relay 16B. The other end of the ventilation operation switch 8E for the toilet is the ventilation motor 12 for the toilet.
It is connected to the other end of A. Further, the other end of the bathroom operation switch 8C is connected to the other end of the bathroom ventilation motor 13A and the other end of the damper motor 4C via the damper motor relay 16C. The other end of the ventilation operation switch 8D for the bathroom is connected to the other end of the ventilation motor 13A for the bathroom. The other end of the indoor fan motor relay 15 is connected to the other end of the indoor fan motor 2A. Compressor
The other end of the outdoor fan motor relay 17 is connected to the other end of the compressor 9A and the other end of the outdoor fan motor 9B. In addition, the operation switch 8A for the washroom, toilet, bathroom,
The signals of 8B and 8C and the ventilation operation switch 8F for the bathroom are input to the control device 18, and the relay 15 for the indoor fan motor, the washroom, the toilet, the relays 16A, 16B and 16C for the damper motor of the bathroom, and the compressor / outdoor fan. The opening / closing signal of the motor relay 17 is output from the control device 18.

Next, the operation will be described with reference to FIG. First, when the washroom operation switch 8A is turned on, the washroom ventilation motor 11A is first operated, and at the same time, the control device 18
The damper motor relay 16A is closed in response to the signal from and the damper motor 4A in the washroom is operated to open the damper so that the blowout body chamber 4 and the air conditioning duct 6 communicate with each other. Further, the indoor fan motor relay 15 and the compressor / outdoor fan motor relay 17 are connected to the control device 18.
The indoor fan motor 2A and the compressor 9A are closed by the signal of
Also, the outdoor fan motor is operated to blow cold air or hot air from the air outlet grill 7 in the washroom. Similarly, when the bathroom operation switch 8C is turned ON, the bathroom ventilation motor 13A is first operated, and at the same time, the damper motor relay 16C is closed by the signal from the control device 18 and the bathroom damper motor 4C is operated and the damper is activated. Is opened to connect the blower body chamber 4 and the air conditioning duct 6 to each other, and cool air or hot air is blown from the blowout grill 7 of the bathroom.

On the other hand, when the bathroom ventilation operation switch 8F is turned on while the toilet, toilet, and bathroom operation switches 8A, 8B, and 8C are off, the bathroom ventilation motor 1
Simultaneously with the operation of 3A, an ON signal of the switch is input to the control device 18, the damper motor relay 16C and the indoor fan motor relay 15 are closed, the damper motor 13A in the bathroom is operated, and the blowout body chamber 4 and The air in the space in which the indoor unit body is installed is blown out from the blowout grill 7 of the bathroom by connecting the air conditioning duct 6 and operating the indoor fan motor 2A.

As described above, according to this embodiment, by turning on the ventilation operation switch of the bathroom, the ventilation device of the bathroom is operated and the blower of the indoor unit is operated at the same time.
The static pressure in the bathroom is higher than when the ventilator is used alone, which improves the performance of the ventilator in the bathroom, increasing the ventilation volume, improving the ventilation function, and from the air-conditioning outlet installed in the bathroom. Since the high-speed wind blows out, the flow of air in the bathroom is increased, so that the bathroom drying function is improved. Further, by removing the moisture inside the duct due to the steam in the bathroom, it is possible to suppress the generation of mold and the like.

Next, a second embodiment will be described with reference to FIGS. 4, 5 and 6. Here, the same parts as those in the first embodiment are designated by the same reference numerals and the description thereof will be omitted.

In the sequence diagram of FIG. 4, 8G is an automatic ventilation / drying operation switch, 19A is a relay for a bathroom ventilation motor, and its opening / closing signal is output from the controller 18.

The bathroom humidity sensor 21 shown in FIG. 6 is shown in FIG.
6 corresponds to the indoor air humidity detecting means of the bathroom shown in FIG. 6, the indoor air intake humidity sensor 22 shown in FIG. 6 corresponds to the indoor air intake air humidity detecting means of FIG. 5, and the comparator 23 shown in FIG. 5 corresponds to the comparison means, the microcomputer 24 of FIG. 6 corresponds to the transition means of FIG. 5, and the output circuit 25 of FIG. 6 corresponds to the output means of FIG.

The operation of the control circuit configured as described above will be described with reference to FIGS. 1 to 6 and 7. For example, when the automatic ventilation / drying operation switch is turned on when the air conditioning operation by the indoor unit is stopped, the indoor humidity of the bathroom is detected by the bathroom humidity sensor 21 installed on the wall surface of the bathroom, and the humidity of the indoor unit intake air is further detected. If the indoor humidity of the indoor air in the bathroom is higher than that detected by the humidity sensor 22 of the indoor unit intake air attached to the suction part of the machine and the indoor humidity of the bathroom is higher, the motor 4C for the damper of the bathroom is opened. In this state, air is blown from the outlet grill 7 of the bathroom.

On the other hand, when the indoor humidity of the bathroom and the humidity of the air sucked into the indoor unit are equal, the bathroom ventilation motor is stopped and the air blown from the outlet grill 7 of the bathroom is stopped.

As described above, according to the second embodiment, the indoor humidity sensor 21 and the indoor unit intake air humidity sensor 22 are provided, and the automatic ventilation / drying operation switch is turned on, whereby the indoor humidity of the bathroom is controlled. The ventilation operation of the bathroom is controlled by controlling the ventilation operation of the bathroom by comparing with the humidity of the intake air of the indoor unit, and the ventilation operation of the bathroom is performed when the indoor humidity of the bathroom is higher than the humidity of the intake air of the indoor unit. Since the ventilation operation to the bathroom is performed at the same time, the ventilation drying of the bathroom can be performed according to the humidity condition in the bathroom, and the operation for the ventilation drying operation is unnecessary and the operation is simplified. In addition, since the ventilation drying operation is stopped when the humidity in the bathroom drops, there is no wasteful operation and it is effective in saving energy.

Next, a third embodiment will be described with reference to FIGS. Here, the same components as those in the previous embodiment are designated by the same reference numerals and the description thereof will be omitted.

The microcomputer 24 shown in FIG. 9 corresponds to a transition means and a time measuring means including the first transition means and the second transition means shown in FIG. 8, and the first output shown in FIG. The circuit corresponds to the first output means shown in FIG. 8, and the second output circuit shown in FIG. 9 corresponds to the second output means shown in FIG.

The operation of the control circuit configured as above will be described with reference to FIGS. 1 to 9 and 10. For example, when the automatic ventilation / drying operation switch is turned on when the air conditioning operation by the indoor unit is stopped, the indoor humidity of the bathroom is detected by the bathroom humidity sensor 21 installed on the wall surface of the bathroom, and the humidity of the indoor unit intake air is further detected. If the indoor humidity of the indoor air in the bathroom is higher than that detected by the humidity sensor 22 of the indoor unit intake air attached to the suction part of the machine and the indoor humidity of the bathroom is higher, the motor 4C for the damper of the bathroom is opened. In this state, air is blown from the outlet grill 7 of the bathroom. The elapsed time from the start of the ventilation operation of the bathroom is counted by a timer that is a time measuring means, and when a certain time (T1) has elapsed, the indoor humidity of the bathroom is detected again by the indoor humidity sensor 21 installed on the wall surface of the bathroom, and the indoor The humidity of the suction air of the machine is detected by the humidity sensor 22 of the suction air of the indoor unit attached to the suction part of the indoor unit, and the humidity is detected by the comparator 23.
When the indoor humidity of the bathroom is higher than that of the bathroom, the motor 4C for the damper of the bathroom is in the open state to perform the drying operation in the heating mode by the indoor unit to release the warm air from the outlet grill 7 of the bathroom and to perform the bathroom ventilation operation. ..

As described above, according to the third embodiment, the indoor humidity sensor 21 and the indoor unit intake air humidity sensor 22 are provided, and the automatic ventilation / drying operation switch is turned on. The ventilation operation of the bathroom is controlled by controlling the ventilation operation of the bathroom by comparing with the humidity of the intake air of the indoor unit, and the ventilation operation of the bathroom is performed when the indoor humidity of the bathroom is higher than the humidity of the intake air of the indoor unit. While performing the ventilation operation to the bathroom, if this operation is continued even after a certain period of time, dry operation by the indoor unit and bathroom ventilation operation are performed, for example, only the bathroom ventilation operation with low room temperature in winter If the drying effect is small, hot air is blown into the bathroom according to the humidity in the bathroom to evaporate the humidity and discharge it by bathroom ventilation. Together with drying performance is simplified it can be greatly improved. Preventing mold in the bathroom by drying operation depending on the humidity in the bathroom after using the bath or drying clothes in the bathroom to increase the humidity in the bathroom simply by turning on the automatic ventilation / drying switch. The structure of the bathroom part can be preserved.

Next, a fourth embodiment will be described with reference to FIGS. 11 and 12. Here, the same components as those in the previous embodiment are designated by the same reference numerals and the description thereof will be omitted.

The indoor humidity sensor 21 shown in FIG. 12 corresponds to the indoor humidity detecting means of the bathroom shown in FIG. 11, and the humidity sensor 22 for the indoor unit intake air shown in FIG. 12 is used for the indoor unit intake air shown in FIG. 12 corresponds to the humidity detecting means, and the microcomputer 24 shown in FIG. 12 corresponds to the first comparing means, the second comparing means, the first shifting means, and the second shifting means shown in FIG. The output circuit 1 corresponds to the first output means shown in FIG. 11, and the second output circuit shown in FIG. 12 corresponds to the second output means shown in FIG.

The operation of the control circuit configured as described above will be described with reference to FIGS. 1 to 12 and 13.
For example, when the automatic ventilation / drying operation switch is turned on when the air conditioning operation by the indoor unit is stopped, the indoor humidity of the bathroom is detected by the bathroom humidity sensor 21 installed on the wall surface of the bathroom, and the humidity of the indoor unit intake air is further detected. The humidity sensor 22 for the indoor unit intake air attached to the suction part of the machine detects them and fetches those values into the microcomputer 24 to calculate <indoor bathroom humidity-indoor unit intake air humidity>, and the difference is a constant value. In the case of (Hu1) or more, the damper motor 4C in the bathroom is in the open state to perform the drying operation in the heating mode by the indoor unit to emit warm air from the blowout grill 7 in the bathroom and to perform the bathroom ventilation operation.

On the other hand, when the difference is smaller than the constant value (Hu1), the bathroom ventilation motor is operated, the indoor unit damper motor 4C is open, and the bathroom outlet grill 7 is opened.
Blow air from. Bathroom ventilation operation is <indoor humidity in the bathroom −
Since there is no difference in the humidity of the indoor unit suction air>, the operation continues.

As described above, according to the fourth embodiment, the indoor humidity sensor 21 and the indoor unit intake air humidity sensor 22 are provided, and the automatic ventilation / drying operation switch is turned on. Depending on the value of the difference between the humidity of the indoor unit intake air and the ventilation / drying operation of the bathroom as well as the air flow to the bathroom, the difference between the indoor humidity of the bathroom and the humidity of the indoor unit intake air is greater than a certain value. At the time of, the indoor unit performs the dry operation of the bathroom and the ventilation operation of the bathroom, but when the difference between the indoor humidity of the bathroom and the humidity of the indoor unit intake air is smaller than a certain value, the bathroom ventilation operation is performed and the bathroom By performing the air-blowing operation to, the determination from the ventilation operation or the drying operation becomes faster, the time until the completion of drying is shortened, and more economical drying becomes possible.

[0049]

As described above, according to the present invention, one of the plurality of rooms is a bathroom, each of the plurality of rooms is provided with an air conditioning outlet, and is connected to a plurality of air conditioning ducts connected to the outlet. An air conditioning system is configured by an indoor unit having a heat exchanger and a blower, which has a possible air outlet, and an outdoor unit and a plurality of ventilation devices for the room,
When the ventilation device of the bathroom is operated when the air conditioning operation by the indoor unit is stopped, the static pressure in the bathroom becomes higher by operating the air blower provided in the indoor unit to increase the static pressure in the bathroom compared to when the ventilation device is alone. Since the performance of the ventilation system is improved, the ventilation volume is increased, the ventilation function is improved, and the airflow in the bathroom is increased due to the high-speed wind coming out from the air conditioning outlet installed in the bathroom. This has the effect of improving the drying function. Further, by removing the moisture inside the duct due to the steam in the bathroom, it is possible to suppress the generation of mold and the like.

Further, humidity detecting means for detecting the indoor humidity of the bathroom, humidity detecting means for detecting the humidity of the indoor unit intake air, and comparing means for comparing the bathroom humidity detecting means and the indoor unit intake air humidity detecting means, When the automatic ventilation / drying operation switch is ON and the bathroom humidity is higher than the indoor unit intake air humidity by the comparison means, the ventilation means for the bathroom is provided with the output means for performing the ventilation operation of the bathroom. It can be operated according to the humidity condition, operation for ventilation drying operation is unnecessary and operation is simplified and ventilation drying operation is stopped when the humidity in the bathroom drops, so there is no wasteful operation and it is also effective for energy saving There is.

Further, a comparing means for comparing the bathroom humidity detecting means and the indoor unit intake air humidity detecting means, a time measuring means for measuring an elapsed time from the start of the ventilation operation of the bathroom, and a time measuring means when the automatic ventilation drying switch is ON. When the bathroom humidity is higher than the indoor unit intake air humidity by the comparison means even when the time measured by exceeds a certain time, by providing an output means for performing a drying operation together with a ventilation operation of the bathroom,
For example, in the case where the bathroom ventilation operation with low room temperature in winter alone has little drying effect, hot air is blown into the bathroom according to the humidity in the bathroom to evaporate the humidity and discharge it by the bathroom ventilation. The operation is unnecessary and the operation is simplified, and the drying performance can be greatly improved. Preventing mold in the bathroom by drying operation depending on the humidity in the bathroom after using the bath or drying clothes in the bathroom to increase the humidity in the bathroom simply by turning on the automatic ventilation / drying switch. This has the effect of making it possible to maintain the structure of the bathroom and bathroom.

Further, when the difference between the bathroom humidity and the indoor unit intake air humidity is equal to or more than a certain value by the comparing unit for comparing the bathroom humidity detecting unit and the indoor unit intake air humidity detecting unit, the drying operation of the bathroom and By providing the output means for performing the bathroom ventilation operation, the determination from the ventilation operation or the drying operation becomes faster, the time until the completion of drying is shortened, and more economical drying becomes possible.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of an air conditioner showing a first embodiment of the present invention.

FIG. 2 is a plan view showing an example of installation of the air conditioner in a washroom or toilet bathroom.

FIG. 3 is a sequence circuit diagram of the same.

FIG. 4 is a sequence circuit diagram showing a second embodiment of the present invention.

FIG. 5 is a block diagram of the same.

FIG. 6 is a control circuit diagram of the same.

[FIG. 7] Same flowchart

FIG. 8 is a block diagram showing a third embodiment of the present invention.

FIG. 9 is a control circuit diagram of the same.

FIG. 10 is a flowchart of the same.

FIG. 11 is a block diagram showing a fourth embodiment of the present invention.

FIG. 12 is a control circuit diagram of the same.

FIG. 13 is a flowchart of the same.

FIG. 14 is a bathroom incorporating a ventilation device in a conventional example,
Perspective view of washroom and toilet air conditioner

FIG. 15 is a sectional view of the same side.

[Explanation of symbols]

 1 Air conditioner 502 Air outlet grill chamber outlet 6 Air conditioning duct 9 Outdoor unit 13 Bathroom ventilation device 21 Bathroom humidity sensor 22 Indoor unit intake air humidity sensor 23 Comparator 24 Microcomputer 25 Output circuit 26 Second output circuit

Claims (4)

[Claims] 1. One of a plurality of rooms is a bathroom, each of the plurality of rooms is provided with an air-conditioning outlet, and has an outlet connectable to a plurality of air-conditioning ducts connected to the outlet and the inside thereof. An indoor unit equipped with a heat exchanger and a blower, an outdoor unit and a plurality of ventilation units for the room constitute an air conditioning system, and when operating the ventilation unit of the bathroom when the air conditioning operation by the indoor unit is stopped An air conditioner characterized by being operated by a blower provided in the indoor unit. 2. A humidity detecting means for detecting the indoor humidity of a bathroom, a humidity detecting means for detecting the humidity of indoor unit intake air, and a comparing means for comparing the bathroom humidity detecting means with the indoor unit intake air humidity detecting means. Automatic ventilation / drying operation switch is O
2. The air conditioner according to claim 1, further comprising output means for performing a ventilation operation of the bathroom when the bathroom humidity is higher than the indoor unit intake air humidity by the comparison means at N. 3. A comparing means for comparing the bathroom humidity detecting means and the indoor unit intake air humidity detecting means, a time measuring means for measuring an elapsed time from the start of the ventilation operation of the bathroom, and a time measuring means when the automatic ventilation drying switch is ON. When the bathroom humidity is higher than the indoor unit intake air humidity by the comparing means even when the time measured by exceeds a certain time, the output means performs the drying operation together with the ventilation operation of the bathroom. The air conditioner according to claim 1. 4. A comparing means for comparing the bathroom humidity detecting means and the indoor unit intake air humidity detecting means and the comparing means, when the difference between the bathroom humidity and the indoor unit intake air humidity is equal to or more than a certain value, dry operation of the bathroom and The air conditioner according to claim 1, further comprising output means for performing a bathroom ventilation operation.