JPH05106891A - Automatic air conditioning and ventilating device - Google Patents

Abstract

PURPOSE:To provide an automatic air conditioning and ventilating device in which a surrounding air of high humidity is supplied, an amount of indoor dew formation is prevented from being increased and a comfortable energy saving ventilation can be carried out CONSTITUTION:An automatic air conditioning and ventilating device is comprised of a sensible heat exchanger 4, a main body storing an air supplying blower 2 and an air discharging blower 3, a humidity judging means 10 and a dew formation judging means 11 for determining an operation or a stopping of the ventilating device in response to a presence or a non-presence of dew formation of an indoor dew formation sensor 8 as well as a humidity difference between an indoor humidity sensor 5 and an outdoor humidity sensor 6, and also comprised of a dew formation judging means 11. Operation and stopping of the sensible heat exchanger are automatically carried out through a driving means 12 in response to this signal.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioning ventilation system for automatically, efficiently and comfortably ventilating a living room of a house.

[0002]

2. Description of the Related Art In recent years, airtightness has increased due to improvements in soundproofing and heat insulating properties of buildings. Therefore, it is necessary to install a ventilation fan for the purpose of hygiene and to prevent the generation of dust, mold, and dew condensation in the room.However, ventilation causes the air in the air-conditioned room to be exhausted, increasing the air conditioning load. It was Recently, an air-conditioning ventilator that is capable of simultaneous supply and exhaust ventilation while recovering the thermal energy in the exhaust has become widespread.

The structure will be described below with reference to FIGS. As shown in the figure, the air supply blower 10
1, the exhaust fan 102, the motor 103, and the dew condensation sensor 1 on the indoor side of the main body 105 in which the sensible heat exchanger 104 is built.
In the main body 105, the dew condensation judging means 107 and the driving means 108 are attached. In the figure, A →
A'is an exhaust air passage, and B-> B 'is an air supply air passage.

With the above arrangement, the indoor dew condensation 109 detected by the dew condensation sensor 106 is transmitted to the driving means 108 by the dew condensation determining means 107. If indoor condensation 109 occurs,
The air supply blower 101 and the exhaust air blower 102 are operated, sensible heat is exchanged through the sensible heat heat exchanger 104, indoor moisture is discharged, and dew condensation is eliminated. If there is no indoor condensation 109, the ventilation system will stop.

Next, the operation of the ventilation device will be described with reference to FIG. As shown in the figure, indoor dew condensation is detected in step 121, the presence or absence of dew condensation is determined in step 122, and if they match, the process proceeds to step 123, the ventilation device is operated, and the process returns to step 121. If they do not match, the process proceeds to step 124, the ventilation device is stopped, and the process returns to step 121.

[0006]

In such a conventional configuration, the presence or absence of dew condensation 109 in the room is the only criterion for humidity determination, and when the outdoor humidity is higher than the indoor humidity, the outdoor air enters the room. Due to the supply of air, the indoor dew condensation 109 is not eliminated, and on the contrary, the amount of dew condensation increases, which may cause discomfort, mould, mold, and dew condensation easily in the room. Keeps driving without stopping. Furthermore, due to the compactness of the air conditioning ventilation system, ventilation resistance increases, air volume decreases, and indoor humidity decreases slowly,
There was a problem that the ventilation could not be satisfactory, the indoor dew condensation 109 was not lost, and a cold draft feeling in winter was felt, and the user arbitrarily stopped the operation.

The present invention is to solve the above-mentioned problems, and when the outdoor humidity is high, the automatic ventilation device having a function of stopping the air supply and preventing the ventilation device from continuing to operate without stopping. The first purpose is to provide Also,
The second purpose is to make up for the shortage of air volume and quickly reduce the indoor humidity when necessary. The third purpose is to eliminate the cold draft feeling in the winter when the user cannot stop the operation without permission.

[0008]

In order to achieve the above-mentioned first object, the automatic air-conditioning ventilation system of the present invention comprises:
A sensor that detects indoor humidity, a sensor that detects indoor humidity, a sensor that detects indoor dew condensation, and a sensor that detects indoor and outdoor humidity in the main body that has a sensible heat heat exchanger, a blower for air supply, and a blower for exhaust Humidity determination means for comparing and judging the high and low of the indoor and outdoor humidity with the humidity detected by the humidity sensor as input signal, and the dew condensation determining means for determining the presence or absence of dew condensation as the input signal of the signal sensed by the indoor dew sensor. A drive means for operating and stopping the air supply blower and the exhaust air blower is provided based on the humidity determining means and the condensation determining means.

Further, in order to achieve the second object, the second
The means is a main body incorporating a total heat type heat exchanger, an air supply blower, an exhaust air blower, and a normal ventilation means, a sensor for detecting outdoor humidity, a sensor for detecting indoor humidity, and an indoor A humidity determination unit that has a sensor that detects dew condensation and uses the humidity detected by a humidity sensor that detects the humidity inside and outside the room as an input signal to determine whether the humidity inside and outside is high or low Based on the judgment signal by the dew condensation judging means for judging the presence or absence of dew condensation, and the humidity judging means and the dew condensation judging means, using the signal as an input signal,
And a drive means for operating / stopping the normal ventilation means.

In order to achieve the third object, the third
In the second means, a sensor for detecting the outdoor temperature and a heater in the air supply air passage of the air supply blower are incorporated in the second means, and the temperature determination means for determining the temperature level by using the outdoor temperature as an input signal, A drive means for operating the heater based on a determination signal from the temperature determination means is provided.

[0011]

According to the present invention, by the structure of the first means described above, the humidity sensor measures the indoor and outdoor humidity when dew condensation occurs in the room, and when the indoor humidity is higher than the outdoor humidity, the humidity determining means sends a signal to the driving means. When the outdoor humidity is higher than the indoor humidity, the humidity determining means sends a signal to the driving means to stop the ventilation apparatus.

When dew condensation occurs in the room due to the structure of the second means, the humidity sensor measures the indoor and outdoor humidity, and when the indoor humidity is lower than the outdoor humidity, the humidity determining means sends a signal to the driving means. When the outdoor air humidity is lower than the indoor humidity by operating the air supply blower and the exhaust air blower, and when the outdoor humidity is lower than the indoor humidity, a signal is sent to the drive means by the humidity determination means, in addition to the air supply blower and the exhaust air blower. If the normal ventilation means is operated and dew condensation does not occur in the room, the ventilation system will be stopped.

When dew condensation occurs in the room due to the structure of the third means, the temperature sensor measures the outdoor temperature, and when the outdoor temperature is lower than the reference value, the temperature determining means and the humidity determining means send a signal to the driving means. The air blower for air supply and the air blower for exhaust are operated to perform heat exchange ventilation and to operate the heater. Then, when the outdoor temperature is higher than the reference value, the outdoor humidity is measured, and when the indoor humidity is higher than the outdoor humidity, a signal is sent from the humidity determining means to the driving means and an air supply blower,
When the normal ventilation means is operated in addition to the exhaust air blower and the indoor humidity is lower than the outdoor humidity, a signal is sent from the humidity determination means to the drive means, and the air supply blower and the exhaust air blower are operated to perform total heat exchange ventilation. If there is no condensation in the room, the ventilation system will be stopped.

[0014]

【Example】

(Embodiment 1) Hereinafter, a first embodiment of the present invention will be described with reference to FIG.
-It demonstrates, referring FIG.

In FIG. 1, reference numeral 1 denotes a main body of a ventilation device, which has a blower 2 for air supply and a blower 3 for exhaust air built therein, and an exhaust ventilation passage X → X ′, a ventilation air supply through a sensible heat heat exchanger 4. Road Y → Y '
Is formed. Then, a humidity sensor 5 attached to the indoor side to detect the indoor humidity, a humidity sensor 6 attached to the outdoor side to detect the outdoor humidity, and a dew condensation sensor 8 attached to a window, a wall, a closet, etc. on the indoor side to detect the dew condensation 7. Is received by the microcomputer 9, and the microcomputer 9 is provided with a humidity determination means 10 and a condensation determination means 11 for determining the operation / stop of the ventilation device by the humidity sensors 5 and 6 and the condensation sensor 8, and the driving means 12 The blower 2 for air supply and the blower 3 for exhaust air are operated through.

Next, the operation of the ventilation device will be described with reference to FIG. As shown in the figure, in step 20, the indoor dew condensation is input to the microcomputer 9, and in step 21, the presence or absence of indoor dew condensation is determined. If they match, the process proceeds to steps 22 and 23. If they do not match, the process proceeds to step 26 and the ventilation device. Is stopped and the process returns to step 20. Step two
2 and 23, the indoor and outdoor humidity Hin and Hout are input, and in step 24, "Hout" and "Hin" are compared. If they match, the process proceeds to step 25, the ventilation device is operated, and step 2
Return to 0, and if they do not match, proceed to step 26, stop the ventilation device, and return to step 20.

As described above, according to the ventilator of the first embodiment of the present invention, when dew condensation occurs in the room and the indoor humidity is higher than the outdoor humidity, the indoor humidity is discharged by sensible heat exchange ventilation,
In addition, energy exchange ventilation can be performed by heat exchange ventilation, and when there is no condensation in the room or when the indoor humidity is lower than the outdoor humidity, the ventilation system is automatically stopped and high-humidity outdoor air is supplied. There is no need to be annoyed, the ventilation system will not stop, and you will not continue to drive.

(Second Embodiment) A second embodiment of the present invention will be described below with reference to FIGS.

In the second embodiment, the sensible heat exchanger 4 in the ventilator of the first embodiment is a total heat type heat exchanger 13, an ordinary ventilation blower 14 is provided, and the ordinary ventilation blower 14 is provided.
Is connected to the drive means 12, and a ventilation path Z → Z ′ for normal ventilation is provided.

Next, the operation of the ventilation device will be described with reference to FIG. As shown in the figure, in step 20, the indoor dew condensation is input to the microcomputer 9, and in step 21, it is judged whether or not there is indoor dew condensation.
If it does not match, the process proceeds to step 26, the ventilation device is stopped, and the process returns to step 20. Steps 22 and 23
Proceed to, enter indoor and outdoor humidity Hin, Hout, and then step 2
In step 4, "Hout" and "Hin" are compared, and if they match, the process proceeds to steps 27 and 28, and air supply blower 2 and exhaust blower 3
Then, the normal ventilation blower 14 is operated and the process returns to step 20. If they do not match in step 24, the process proceeds to step 27, the air supply blower 2 and the exhaust blower 3 are operated, and the process returns to step 20.

As described above, according to the ventilator of the second embodiment of the present invention, when the dew condensation occurs in the room and the indoor humidity is higher than the outdoor humidity, the air supply fan 2 and the exhaust air fan 3 are provided.
Also, the blower 14 for normal ventilation is operated to quickly discharge indoor humidity with a large air volume, and energy-saving ventilation can be performed by heat exchange ventilation, and when the indoor humidity is lower than the outdoor humidity, the blower 2 for air supply and exhaust Energy saving ventilation can be performed by operating the blower 3 and keeping the temperature and humidity in the room by total heat exchange ventilation.

(Embodiment 3) Hereinafter, a third embodiment of the present invention will be described with reference to FIGS.

The third embodiment is provided with the temperature sensor 15 for measuring the outdoor temperature, the temperature judging means 16, the heater 17, and the heater driving means 18 in the ventilator of the second embodiment.

Next, the operation of the ventilation device will be described with reference to FIG. As shown in the figure, in step 20, the indoor dew condensation is input to the microcomputer 9, and in step 21, the presence or absence of indoor dew condensation is determined. If they match, the process proceeds to step 29, and if they do not match, the process proceeds to step 26 and the ventilation device is stopped. Then, the process returns to step 20. In step 29, the outdoor temperature is input, and in step 30, it is compared with the reference value Tx,
If they match, the process proceeds to steps 22 and 23. If they do not match, the process proceeds to steps 27 and 31, the air supply blower 2, the exhaust blower 3 and the heater 17 are operated, and the process returns to step 20.

At steps 22 and 23, the indoor and outdoor humidity is input, and the routine proceeds to step 24, at which the outdoor humidity and the indoor humidity are compared. If they match, the process proceeds to steps 28 and 27, the air supply blower 2, the exhaust blower 3 and the normal ventilation blower 14 are operated, and the process returns to step 20. If they do not match, step 27
Then, the air blower 2 and the exhaust air blower 3 are operated, and the process returns to step 20.

As described above, according to the ventilation device of the embodiment of the present invention, when the indoor humidity is higher than the reference value and the outdoor temperature is lower than the reference value, the heater 17 provided in the air supply part of the total heat exchange ventilation is operated. As a result, the air supply is warmed up with heat exchange ventilation and the cold feeling is no longer felt. Further, when the indoor humidity is higher than the reference value, the outdoor temperature is higher than the reference value, and the indoor humidity is higher than the outdoor humidity, the blower 14 for normal ventilation is also operated together with the total heat exchange ventilation to obtain a large air volume. The moisture in the is quickly discharged. Also, the indoor humidity is higher than the standard value,
When the outdoor temperature is higher than the standard value and the indoor humidity is lower than the outdoor humidity, it is possible to perform detailed energy-saving ventilation, such as performing total heat exchange ventilation and performing ventilation without impairing the indoor temperature and humidity. , Comfort will be further increased.

[0027]

As is apparent from the above embodiments, according to the present invention, by automatically performing sensible heat exchange ventilation and stopping depending on the temperature difference between the indoor and outdoor and the presence or absence of indoor dew condensation,
It is possible to prevent the high-humidity outdoor air from being supplied, the amount of dew condensation in the room to increase, the discomfort to increase, the formation of mold, dust, and dew condensation in the room, and the continuous operation of the ventilation device. In addition, depending on the indoor / outdoor humidity difference and the presence / absence of dew condensation in the room, it automatically switches between total heat exchange ventilation, normal ventilation, and stop, causing a mold shortage due to insufficient air volume and high humidity outdoor air. In addition, it is possible to prevent harmful effects such as the occurrence of dew condensation and the continuous operation of the ventilation device. In addition, total heat exchange ventilation and total heat exchange ventilation with a heater on the air supply side, normal ventilation, and stop are automatically performed depending on the indoor / outdoor temperature difference, the presence or absence of indoor condensation, and the outdoor temperature. As a result, it is possible to prevent the user from arbitrarily stopping the operation due to the cold feeling in the winter, and it is possible to provide an automatic air-conditioning ventilation device that can perform accurate and detailed energy saving and comfortable dew condensation prevention ventilation automatically.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of an automatic air conditioning and ventilation device according to a first embodiment of the present invention.

[Fig. 2] Vertical sectional view of the same automatic air conditioning ventilation device

[Fig. 3] Program chart of the same automatic air conditioning ventilation system

FIG. 4 is a cross-sectional view of an automatic air conditioning and ventilation system according to a second embodiment of the present invention.

FIG. 5 is a vertical cross-sectional view of the same automatic air conditioning ventilation device.

[Fig. 6] Program chart of the same automatic air conditioning ventilation system

FIG. 7 is a cross-sectional view of an automatic air conditioning and ventilation device according to a third embodiment of the present invention.

FIG. 8 is a vertical sectional view of the same automatic air conditioning ventilation device.

[Fig. 9] Program chart of the same automatic air conditioning ventilation system

FIG. 10 is a cross-sectional view of a conventional automatic air conditioning ventilation device.

FIG. 11 is a vertical cross-sectional view of the same automatic air conditioning ventilation device.

FIG. 12 is a program chart of the same automatic air conditioning ventilation system.

[Explanation of symbols]

 1 Main Body 2 Air Supply Blower 3 Exhaust Blower 4 Sensible Heat Heat Exchanger 5 Indoor Humidity Sensor 6 Outdoor Humidity Sensor 8 Condensation Sensor 9 Microcomputer 10 Humidity Judgment Means 11 Condensation Judgment Means 12 Drive Means 13 Full Heat Exchanger 14 blower for normal ventilation 15 temperature sensor 16 temperature determination means 17 heater 18 heater driving means

Claims (3)

[Claims] 1. A sensible heat type heat exchanger, a main body having a blower for air supply and a blower for exhaust, a sensor for detecting outdoor humidity, a sensor for detecting indoor humidity, and detection of indoor dew condensation. A humidity determination unit that has a sensor for detecting the humidity inside and outside the room and uses the humidity detected by the humidity sensor that detects the humidity inside and outside the room as an input signal, and the signal detected by the dew sensor inside the room. A dew condensation determining means for determining the presence or absence of dew condensation as an input signal is provided, and a driving means for operating and stopping the air supply blower and the exhaust air blower is provided based on the determination signals by the humidity determination means and the condensation determination means. Automatic air conditioning ventilation system. 2. A total heat type heat exchanger, a main body incorporating a blower for air supply, a blower for exhaust, and a means for normal ventilation, a sensor for sensing outdoor humidity, and a sensor for sensing indoor humidity.
A humidity determining unit that has a sensor that detects dew condensation inside a room, and uses the humidity detected by a humidity sensor that detects the humidity inside and outside the room as an input signal to determine whether the humidity inside and outside the room is high or low, and a dew condensation sensor inside the room And a dew condensation judging means for judging the presence or absence of dew condensation as the input signal, and based on the judgment signals by the humidity judging means and the dew judging means, the air supply blower, the exhaust air blower and the ordinary ventilation means. An automatic air-conditioning ventilation system equipped with a drive means for operating and stopping the air conditioner. 3. A total heat type heat exchanger, a main body containing a supply air blower having a heater in an air supply air passage, an exhaust air blower, and a normal ventilation means, a sensor for detecting outdoor humidity, and an indoor space. A humidity sensor, an outdoor temperature sensor, and a indoor dew sensor, and the humidity sensor detects the outdoor and indoor humidity as an input signal. Humidity determination means for comparing the high and low of humidity, the signal detected by the dew condensation sensor in the room as an input signal to determine the presence or absence of dew condensation, and the outdoor temperature as an input signal to determine the high or low temperature Temperature determining means, driving means for operating and stopping the air supply blower, the exhaust air blower, and the normal ventilation means based on the determination signals from the humidity determining means and the condensation determining means, and the temperature determining hand. Automatic air-conditioning ventilator provided with driving means for driving said heater based on the determination signal by.