JPH09222251A - Ventilating and dehumidifying device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable under-floor areas such as a lavatory, a bath room and a kitchen or the like having much amount of moisture, in particular, to be dried in a spot-like manner by a method wherein a discharging pipe for feeding air into an under-floor area is arranged, air outside a house is sucked into a room and then an electrical energization for a heating means arranged in an air blowing passage for feeding air is controlled. SOLUTION: An air blowing means 17 blows surrounding air sucked from a suction port 16 to a wind tunnel constituting an air feeding passage 18. A heater acting as a heating means 19 is arranged in the air blowing passage 18 and there is provided an air discharging pipe 20 connected to the end part of the air blowing passage 18 or integrally assembled with the air blowing passage 18 for blowing dried air into an under-floor area 9. In addition, a sensing means 21 for sensing a humidity of the surrounding air is arranged near the air suction port 16. Humidity information detected by the sensing means 21 is connected to a control means 22 for use in controlling an electrical energization for the heating means 19. The air blowing mean 17 is constituted by a fan motor and a casing.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ventilating and dehumidifying device for ventilating and dehumidifying a space such as under a floor of a building.

[0002]

2. Description of the Related Art When a house is built in a bundle as seen in an ancient Japanese house, a wooden house having a high air permeability under the floor of the house and having high durability even under high temperature and high humidity weather conditions. Is what you can do. In recent years, since the underfloor is surrounded by a cloth foundation, the ventilation under the floor is poor even though there is a slight ventilation port. For this reason, the humidity under the floor is high, and mold and rot fungi easily propagate, and the wood constituting the floor is easily corroded.

For these reasons, in recent years, the use of underfloor ventilation fans having the structure shown in FIG. 20 has been increasing in order to improve ventilation under the floor. Reference numeral 1 denotes a blower provided inside the ventilation fan main body 2, which sucks stagnant air under the floor 9 from an intake port 3 and exhausts the air from an exhaust port 4. Actually, as shown by 2a, 2b, 2c in FIG. 21, this ventilation fan main body uses a part of the ventilation port 10 on the north side of the building, or in the vicinity of the floor under the water around the bathroom, bathroom, kitchen, etc. Is provided.

FIG. 22 shows the electrical connection of this underfloor ventilation fan. The controller 11 controls the operation of a plurality of ventilation fan main bodies 2a, 2b, 2c.

With the above configuration, the controller 11 operates the ventilation fan main body 2 during a predetermined time, generally from about 10:00 am to about 4:00 pm when the humidity of the outside air becomes low.
When the ventilator body 2 operates, the air outside on the south side flows in from the ventilation port 10 as shown by the arrow a, and the stagnant and humid air below the floor 9 is exhausted from the exhaust port 4 to the outside. By repeating this operation, the humidity of the underfloor 9 is reduced, the moisture content of the wood constituting the underfloor 9 is reduced, and the activity of wood rot fungi or the activity of mold is suppressed.
In the case where the controller 11 has a built-in humidity sensor, the operation of the ventilation fan body 2 is stopped when the humidity of the outside air is high, such as when it is raining, and the ventilation fan body 2 is operated only when the outside air is at low humidity. To do.

[0006]

The underfloor ventilation fan having the above-mentioned structure has a problem that the ventilation function is not sufficient. That is, in the configuration in which the ventilation fan main body 2 is simply operated every day for a predetermined time, when the outside air has a high humidity, the outside air having a high humidity is taken into the underfloor, which conversely increases the underfloor humidity. In addition, the controller 11 having a built-in humidity sensor remains in a stopped state while the high humidity state continues for a long period such as the rainy season. That is, the operation is kept stopped when drying by ventilation is originally required.

Further, as shown in FIG. 23, even if the ventilation fan main body 2 is operated when the humidity of the outside air is low, the relative humidity of the air under the floor on the north side where the ventilation fan main body 2 is installed does not decrease so much. The reason for this is that the temperature of the outdoor air sucked into the underfloor 9 from the ventilation port 10 on the south side decreases by the time it reaches the washroom on the north side, and the relative humidity of the air under the floor on the north side does not decrease. This is because.

[0008]

SUMMARY OF THE INVENTION The present invention solves the problems of the conventional structure as described above, and it is particularly liable to be humid regardless of the humidity of the outside air. It is a ventilation dehumidifier that can dry the underfloor such as the spot.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention described in claim 1 controls the energization to the heating means arranged in the air blowing path according to the humidity detected by the detecting means, so that the air blowing means puts the outdoor air directly under the floor. It is a ventilation / dehumidifying device that blows air or blows it under the floor as heated high temperature air.

According to the second aspect of the present invention, there is provided a ventilation / dehumidifying device for drying outdoor air by means of an adsorbent arranged in a ventilation path and blowing dry air under the floor.

According to the third aspect of the present invention, when the humidity of the outdoor air detected by the detection means is high, the regenerative heating means is energized to activate the adsorbent and blow dry air under the floor. The device.

According to a fourth aspect of the present invention, the adsorbent disposed in the air blowing path is rotated between the adsorbing path and the regenerating path. When the outdoor air has a high humidity, the regenerating heating means is energized to adsorb the adsorbent. The ventilation and dehumidification device regenerates the adsorbent through the regeneration path by blowing dry air under the floor from the adsorption path while activating the material.

According to the fifth aspect of the present invention, there is provided a ventilation / dehumidifying device for blowing dry air under the floor by means of an evaporator provided in a ventilation path, and a condenser and a compressor forming a closed circuit with the evaporator.

In a sixth aspect of the invention, when the humidity detected by the detecting means is low, the second blowing means performs ventilation operation for blowing outside air under the floor, and when the humidity is high, the first blowing operation is performed. As a ventilation dehumidifier that blows air under the floor by the air blower, absorbs moisture by the adsorbent, and blows it as dry air under the floor, and when the activity of the adsorbent decreases, the regeneration heating means is energized to activate the adsorbent. There is.

According to a seventh aspect of the present invention, when the first switching valve for switching the first exhaust pipe and the second exhaust pipe and the third exhaust pipe are opened, the ventilation path is closed, and Detects a second switching valve that opens the ventilation path when the third exhaust port is closed, and a third switching valve that switches between intake air from the first intake pipe and intake air from the second intake pipe Simple ventilation ventilation / dehumidification with a configuration in which the ventilation means used for ventilation operation and the ventilation means used for dehumidification operation are shared by switching over according to the detected humidity of the means and controlling the power supply to the regeneration heating means. The device.

According to the invention described in claim 8, there is provided a ventilation dehumidifying device capable of performing ventilation and dehumidification by one blowing means by switching the blowing direction of the blowing means during ventilation and dehumidification.

The invention described in claim 9 provides a simple ventilation / dehumidifying device having a structure in which the outside air is used both during ventilation and during dehumidification so that the underfloor can be maintained in a low humidity state even when the adsorbent is regenerated.

According to the tenth aspect of the present invention, there is one connection port for intake and exhaust under the floor, which is easy to construct and has a simple structure.

According to the eleventh aspect of the invention, the cylindrical wind tunnel rotates around the adsorbent so that the directions of the air flowing through the adsorbent are switched during regeneration and adsorption, so that the adsorbent is protected from dust. The ventilation dehumidifier has a simple structure that is hard to adhere and has high durability.

According to the twelfth aspect of the invention, the adsorbent is rotated at the time of switching between the adsorbent adsorbing step and the regenerating step so that the flow of air passing through the adsorbent is reversed and dust is attached to the adsorbent. It is a ventilation and dehumidifier with high durability and a simple structure.

According to the thirteenth aspect of the present invention, the adsorbent is rotated at the start of the ventilation process so that the flow of the air passing through the adsorbent is reversed, so that dust is unlikely to adhere to the adsorbent and durability is improved. It is a ventilation dehumidifier that is expensive and has a simple structure.

In the fourteenth aspect of the present invention, the adsorbent is rotated at the start of the ventilation process to open the air passage, so that dust is unlikely to adhere to the adsorbent, the durability is high, and the structure is simple. It is used as a ventilation dehumidifier.

In the invention described in claim 15, the ventilation operation and the dehumidifying operation can be performed by one air blower, and one disc can be used for the ventilation operation and the dehumidifying operation in the adsorption process and the regeneration process. The ventilation and dehumidifier has a simple structure that can switch the air passages.

According to the sixteenth aspect of the present invention, the main body and the underfloor are communicated with each other through the ventilation port panel having one or a plurality of communication pipes, and the existing ventilation port is not processed. The ventilation dehumidifier is very easy to install.

[0025]

【Example】

(Embodiment 1) A first embodiment of the present invention will be described below with reference to FIG. Reference numeral 15 is a main body which constitutes the ventilation / dehumidification device of the present embodiment, and is an intake port 16 for inhaling outdoor air.
And the outdoor air taken in through the intake port 16
And a ventilation path 1 for blowing air to the wind tunnel that constitutes the
An exhaust pipe 20 for blowing the dry air, which is connected to the end of the air blowing passage 18 or is integrated with the heater, which is the heating means 19 disposed in the underfloor 9, to the underfloor 9.
have. Further, a detecting means 21 for detecting the humidity of the outside air is provided near the intake port 16. The humidity information detected by the detection unit 21 is connected to the control unit 22 that controls the energization of the heating unit 19. The blowing means 17 is constituted by a fan motor and a casing.

A ventilation port panel 23 having a communication pipe 24 is attached to the outer wall surface of the building so as to cover the ventilation port 10. A space 25 is formed between the ventilation port 10 and the ventilation port panel 23. Also, the exhaust pipe 20
The communication pipe 24 and the communication pipe 24 are connected by a duct 26.

The main body 15 of the ventilation / dehumidifying device of this embodiment is as follows.
As described in FIG. 21 in the section of the conventional example,
Underfloor around the water in the washroom or kitchen facing the north 9
It is installed near the ventilation port 10 of.

The operation of this embodiment will be described below. When the humidity detected by the detection unit 21 is low, the control unit 22 executes the ventilation operation. That is, the air blowing unit 17 operates to suck the low-humidity outdoor air from the intake port 16 and blow it from the exhaust pipe 20 to the underfloor 9. Therefore, the humid and stagnant air that has accumulated in the underfloor 9 is exhausted from another ventilation port 10 and is replaced with low-humidity outdoor air. FIG. 2 is a relative view of the underfloor 9 when the ventilation / dehumidifying device of the present embodiment is installed in the ventilation opening 10 near the underfloor around a water such as a bathroom, a bathroom, or a kitchen, which tends to have high humidity. This shows the change in humidity. As shown in FIG. 2, the relative humidity of the washroom facing the north side of the building is extremely low from 10 am to 4 pm when this device is operated, and it is effective to dry the underfloor 9. I know if it is the target.

When the humidity detected by the detection means 21 is high, that is, when it is raining, the control means 22 executes the dry operation.
That is, the heating means 19 is energized simultaneously with the operation of the blowing means 17. Therefore, the outdoor air blown by the blowing means 17 is
The exhaust pipe 20 is heated by the heating means 19 and becomes hot air.
The air is blown into the underfloor 9 through the duct 26. The stagnant, high-humidity, low-temperature air under the floor 9 is replaced with the warm air, and as a result of being warmed, the relative humidity decreases.

As described above, according to this embodiment, it is possible to perform spot-like drying under the floor around the water in a bathroom, a bathroom, a kitchen, etc. which is particularly humid in a wide floor, thus reducing the water content of wood. Therefore, it is possible to suppress the activity of wood decay fungi or the activity of mold and mite.

Further, the ventilation operation and the drying operation can be automatically used properly according to the humidity condition of the outside air.

Further, since the ventilation port panel 23 having the communication pipe 24 is used and the exhaust pipe 20 is connected to the communication pipe 24 by the duct 26, the installation work is very easy. In other words, there is no need to remove the existing ventilation port or to make a hole in the existing ventilation port.

(Second Embodiment) Next, a second embodiment of the present invention will be described. In this embodiment, as shown in FIG. 3, the adsorbent 27 is detachably arranged in the air passage 18. As the adsorbent 27, granular silica gel / zeolite or the like is filled in a bag having air permeability, or silica gel / zeolite having a honeycomb cross section having a lattice cross section or a hexagonal cross section is used.

With the above configuration, the outdoor air blown by the blower means 17 to the underfloor 9 always passes through the adsorbent 27. FIG. 4 shows the relationship between the relative humidity and the moisture content of the outdoor air passing through the adsorbent 27. When the relative humidity of the outdoor air is low, the water content of the outdoor air is low and the amount of water adsorbed by the adsorbent 27 is small. However, since the air is originally low in humidity, it is blown to the underfloor 9 as dry air. When the humidity of the outdoor air is high, such as in the case of rain, the adsorbent 27 adsorbs a large amount of water, and the outdoor air becomes low-humidity dry air and is blown to the underfloor 9. At this time, the air passing through the adsorbent 27 receives the heat of condensation of moisture from the adsorbent 27 and its temperature rises. Therefore, low-humidity warm air is blown to the underfloor 9.

As described above, according to this embodiment, dry air can be constantly blown to the underfloor 9 without being influenced by the outdoor humidity, and the drying of the underfloor 9 can be promoted.

(Embodiment 3) Next, a third embodiment of the present invention will be described. In this embodiment, as shown in FIG. 5, a regeneration heating means 28 for activating the adsorbent 27 is provided on the upstream side of the adsorbent 27. In addition, a first exhaust pipe 29 that blows dry air to the underfloor 9 is provided in the blowing path 18,
The second exhaust pipe 30 that discharges the air flow blown by the blowing unit 17 to the outside of the machine is connected. The first exhaust pipe 29 and the second exhaust pipe 30 are selectively opened and closed by a switching valve 31. The switching valve 31 is a motor (not shown),
It is configured by a drive source such as an electromagnet and the partition plate 32.

With the above structure, the control means 22 is the detection means 2
The ventilation operation, the adsorption mode operation for adsorbing moisture on the adsorbent, and the regeneration mode operation for activating the adsorbent are executed according to the detected humidity of 1. In this embodiment, the adsorption mode operation and the regeneration mode operation constitute the dehumidification operation.

When the detection humidity of the detection means 21 is low,
The control means 22 performs ventilation operation. That is, the switching valve 31 is closed to the side a and the blower unit 17 is operated. Therefore, the low-humidity outdoor air sucked from the suction port 16 becomes even lower in humidity by passing through the adsorbent 27, and is blown from the first exhaust pipe 29 to the underfloor 9. Therefore, the high-humidity stagnant air staying under the floor 9 is exhausted from another ventilation port 10 and is replaced with low-humidity outdoor air.

When the detected humidity of the detecting means 21 is high, that is, when it is raining, the controlling means 22 executes the adsorption mode operation. That is, similarly to the above, the switching valve 31 is closed to the a side and the blower means 17 is operated. The high-humidity outdoor air sucked from the suction port 16 by the blower unit 17 becomes low in humidity by coming into contact with the adsorbent 27, and also receives the heat of condensation of the adsorbent 27 to become warm air to become the first exhaust pipe 29. Is blown from under the floor 9. Therefore, the stagnant and humid air in the underfloor 9 is exhausted to the outside from the ventilation port 10 and replaces the warm air blown from the first exhaust pipe 29.

By the operation in the adsorption mode, the adsorbent 19
Absorbs a large amount of water and its activity decreases. Therefore, in the present embodiment, when the adsorption mode operation for a predetermined time is executed, the control means 22 executes the regeneration mode operation for recovering the activity of the adsorbent 27. That is, the switching valve 23 is set to the low side, that is, the first exhaust pipe 29 is closed and the second exhaust pipe 30 is closed.
The regenerative heating means 28 is energized with the open state. In this way, the air flow sucked and blown by the blower unit 17 is regenerated and heated by the regeneration heating unit 28 provided upstream of the adsorbent 27.
Is heated to a high temperature and comes into contact with the adsorbent 27. The adsorbent 27 is heated to release the adsorbed water and recover the activity. The air stream thus humidified is exhausted from the second exhaust pipe 30 to the outside of the machine. By repeating this adsorption / regeneration mode, dehumidification of the underfloor 9 proceeds.

As described above, according to this embodiment, the regeneration mode operation is executed when the activity of the adsorbent 27 decreases due to the adsorption mode operation, so that the activity of the adsorbent 27 is maintained and the underfloor is effectively ventilated. It can be dehumidified.

(Fourth Embodiment) Next, a fourth embodiment of the present invention will be described with reference to FIG. In this embodiment, a part of the air blowing path 18 is divided into an adsorption path 18a and a regeneration path 18b. In addition, the adsorbent 2 provided in the air passage 18
7 is rotatable, and the adsorption path 18a and the regeneration path 1 are
8b and 8b are alternately rotated. That is, the adsorbent 27 is rotated by the drive device 32 including a motor, a pulley, a belt and the like. Also, the reproduction path 18b
On the upstream side of the adsorbent 27, a regeneration heating means 28 for activating the adsorbent 27 is arranged. 29 is the adsorption path 18
It is a first exhaust pipe that blows dry air connected to a to the underfloor 9. Reference numeral 30 is a second exhaust pipe connected to the regeneration path 18b for discharging high-humidity air to the outside of the machine.

The operation of this embodiment will be described below. The adsorbent 27 is configured to be rotatable by the drive device 32, and when the drive device 32 is driven, the adsorbent 27 alternately passes through the adsorption path 18a and the regeneration path 18b. That is, the portion of the adsorbent 27 that has passed through the adsorption path 18a acts so as to adsorb the moisture of the outdoor air taken in by the air blower 17 from the intake port 16, and as a result, the dehumidified dry air is The air is blown from the one exhaust pipe 29 to the underfloor 9. The moisture adsorbed by the adsorbent 27 by the ventilation operation or the adsorption mode operation is released by the heat generated by the regeneration heating means 28 while the adsorbent 27 is further rotated by the drive device 32 for half a rotation and passes through the regeneration path 18b. It is exhausted from the exhaust pipe 30 to the outside of the machine. At the same time, when the adsorbent 27 is activated and reaches the adsorption path 18a, the adsorbent 27 has sufficiently recovered the water adsorption function.

As described above, according to this embodiment, the adsorbent 2
Since 7 is configured to be rotatable so as to alternately pass through the adsorption path 18a and the regeneration path 18b, the adsorption mode operation and the regeneration mode operation can be simultaneously and continuously performed.

(Fifth Embodiment) Next, a fifth embodiment of the present invention will be described. FIG. 7 is a cross-sectional view showing the configuration of the ventilation dehumidifying device of this embodiment. In this embodiment, the air flow path 1
8 is provided with an evaporator 33 and a condenser 34, which are piped so as to form a closed circuit with a compressor 35 provided outside the blower path 18. At this time, there is no problem even if the condenser 34 is provided outside the air passage 18. In addition, a first exhaust pipe 29 is provided in the air passage 18.
Is connected and the dry air is blown to the underfloor 9. Further, 33a is a drain pipe, and the condensed water is discarded outside the machine. The control unit 22 controls the energization of the blower unit 17 and the compressor 35 according to the humidity detected by the detection unit 21.

The operation of this embodiment will be described below. When the humidity detected by the detection unit 21 is low, the control unit 22 controls so that only the blower unit 17 is energized. That is, the ventilation operation is executed. The low-humidity outdoor air taken in from the intake port 16 by the blowing means 17 is blown from the first exhaust pipe 29 to the underfloor 9. Thus, the high-humidity stagnant air in the underfloor 9 is replaced with the low-humidity outdoor air, and the underfloor 9 is dried.

When the detection humidity of the detection means 21 is high,
The control unit 22 executes the dehumidifying operation. That is, the blower means 17 and the compressor 35 are energized. Compressor 3
When the electricity is supplied to 5, the refrigerant pumped by the compressor 35 constitutes a closed circuit. The evaporator 33 and the condenser 34
Circulate between. Therefore, the evaporator 33, the condenser 34, and the compressor 35 act as a heat pump device 36.
That is, the high-humidity outdoor air sucked from the air inlet 16 by the air blowing unit 17 comes into contact with the evaporator 33 in the air blowing path 18. Therefore, the refrigerant gas in the evaporator 33 is evaporated and liquefied, and a large amount of heat of vaporization is taken from the outdoor air. Therefore, the outdoor air is cooled to a low temperature, and excess water is discharged as condensed water from the drainage pipe 33a to the outside of the machine. As a result, the outdoor air becomes low-humidity dry air. When this dry air comes into contact with the condenser 34, it is heated by being vaporized by the liquefied refrigerant gas. The refrigerant gas is vaporized again and circulates in the evaporator 33. The dry air thus heated is blown from the first exhaust pipe 29 to the underfloor 9 to dry the underfloor 9.

At this time, the condenser 34 is connected to the ventilation path 18
When installed outside, the temperature of the dry air blown from the first exhaust pipe 29 to the underfloor 9 remains low, but there is no problem in practical use.

As described above, according to this embodiment, the evaporator 3
3. The heat pump device 36 configured by the condenser 34 and the compressor 35 is used according to the detected humidity of the detection means 21, and the dehumidified dry air can be blown to the underfloor 9 and the underfloor 9 can be saved with energy and effectively. Can be ventilated and dehumidified.

(Embodiment 6) Next, a sixth embodiment of the present invention will be described. FIG. 8 is a cross-sectional view showing the configuration of the ventilation / dehumidifying device of this embodiment. In the main body 15 (hereinafter simply referred to as the main body 15) of the ventilation / dehumidifying device of the present embodiment, the first blower means 41 for sucking and blowing the air under the floor 9 from the intake pipe 40.
And a wind tunnel forming the air blowing path 18 through which the first air blowing means 41 blows air. In the ventilation path 18, the adsorbent 2
7, a regeneration heating means 28 composed of a heater provided on the upstream side of the adsorbent 27 for activating the adsorbent 27, a first exhaust pipe 42 for blowing dry air under the floor, and a first blowing means 4
The second exhaust pipe 43 for exhausting the air flow blown by
And a switching valve 44 that selectively opens and closes the first exhaust pipe 42 and the second exhaust pipe 43. In addition, at the lower part of the main body 15, the outside air is sucked through the intake port 45 and the third exhaust pipe 46
A second air blower 47 is provided to blow air from under the floor 9. At the upper part of the main body 15, to the detecting means 21 for detecting the humidity of the outside air, and to the first air blowing means 41, the second air blowing means 47, the switching valve 44, the regenerative heating means 28 according to the humidity detected by the detecting means 21. The control means 22 for controlling the energization is provided.

The switching valve 44 is composed of a drive source (not shown) such as a motor and an electromagnet, and a partition plate. As the adsorbent 27, silica gel, zeolite or the like is used. First blower 41 and second blower 47
Is composed of a fan motor and a casing.

The operation of this embodiment will be described below. When the humidity detected by the detection unit 21 is low, the control unit 22 executes the ventilation operation. That is, the second blower 47 operates to suck the low-humidity outdoor air from the intake port 45 and blow it to the underfloor 9 from the third exhaust pipe 46. For this reason, the high-humidity stagnation air accumulated in the underfloor 9 is exhausted from the ventilation port 10
Exhausted from and replaced by low humidity outdoor air.

When the detected humidity of the detecting means 21 is high, that is, when it is raining, the controlling means 22 executes the dehumidifying operation.
That is, the operation of the second air blowing unit 47 is stopped and the first air blowing unit 41 is operated. When the first air blowing unit 41 operates, high-humidity underfloor air is sucked from the intake pipe 40, and the sucked airflow flows through the air blowing path 18. An adsorbent 27 is provided in the air passage 18 so that the air flow is
Contact with. By contact with the adsorbent 27, the moisture in the airflow is adsorbed by the adsorbent 27 and the airflow becomes low in humidity. at the same time,
The heat of adsorption of the adsorbent 27 is applied to the airflow, and the temperature of the airflow becomes high.
At this time, the switching valve 44 is on the side of A, that is, since the first exhaust pipe 42 is open and the second exhaust pipe 43 is closed, this low-humidity, high-temperature airflow is generated by the first exhaust pipe. The air is blown from 42 into the underfloor 9. Therefore, the stagnant and humid air in the underfloor 9 is exhausted to the outside through the ventilation port 10,
It replaces the low-humidity, high-temperature airflow blown from the first exhaust pipe 42. By the adsorption mode operation of the above dehumidification operation, the activity of the adsorbent 27 decreases. When the operation in the predetermined adsorption mode ends in this way, the control means 22
Is to enter the regeneration mode operation for recovering the activity of the adsorbent 27. That is, the regenerative heating means 28 is energized with the switching valve 44 on the low side, that is, with the first exhaust pipe 42 closed and the second exhaust pipe 43 open. In this way, the air flow sucked and blown by the first air blowing unit 41 is heated by the regeneration heating unit 28 provided on the upstream side of the adsorbent 27 to reach a high temperature, and comes into contact with the adsorbent 27. The adsorbent 27 is heated to release the adsorbed water and recover the activity. The air stream thus humidified is exhausted out of the machine through the second exhaust pipe 43. By repeating this adsorption / regeneration mode, dehumidification of the underfloor 9 proceeds.

As described above, according to the present embodiment, for an underfloor around a particularly humid room in a wide floor, by providing this device at a ventilation port in the vicinity thereof, spot ventilation / spot dehumidification can be performed. It is possible, and the ventilation operation and the dehumidification operation can be automatically used separately according to the humidity condition of the outside air.

Further, particularly in the case of this embodiment, the air blowing path 18 used for the dehumidifying operation, the third exhaust pipe 46, the second air blowing means 47, and the intake port 45 used for the ventilation operation are configured. Since the ventilation path is separated, the airflow does not pass through the adsorbent 27 during ventilation, and pressure loss due to the adsorbent 27 does not occur. Therefore, the third exhaust pipe 4
The amount of outside air supplied from 6 to the underfloor 9 can be increased, and highly efficient ventilation operation can be performed.

(Embodiment 7) Next, a seventh embodiment of the present invention will be described. FIG. 9 is a cross-sectional view of the main part of the main body of the ventilation / dehumidifying device of this embodiment. Reference numeral 48 is a first intake pipe for intake of air under the floor 9, and is connected to a second intake pipe 49 for intake of outdoor air via a third switching valve 54. 50
Is a blower for blowing the air taken in through the intake pipe 48 or the second intake pipe 49.
Inside, an adsorbent 27 and a regeneration heating means 28 for activating the adsorbent 27 provided on the upstream side of the adsorbent 27 are provided. A first exhaust pipe 42 that blows dry air to the underfloor 9 through a first switching valve 44 and a second exhaust pipe 52 that exhausts the air flow blown by the blower means 50 to the end of the blower path 51. The exhaust pipe 43 is connected. In addition, a third exhaust pipe 52 that blows ventilation air to the underfloor is connected to an intermediate portion of the air passage 51 via a second switching valve 53. Although not shown, the detection means 21 and the control means 22 are provided on the upper part of the main body as in the sixth embodiment.

The operation of this embodiment will be described below. During the ventilation operation, the control means 22 closes the second switching valve 53 on the side of c and the third switching valve 54 closes on the side of e, and the blowing means 5
It drives 0. That is, the blower 50 blows the low-humidity outdoor air a sucked from the second intake pipe 49 from the third exhaust pipe 52 to the underfloor 9 as shown by b. Therefore, the stagnant air in the underfloor 9 is exhausted to the outside through the ventilation port 10 and is replaced with low-humidity outside air, so that the underfloor 9 becomes low in humidity.

Further, during the operation in the adsorption mode during dehumidification, the control means 22 sets the second switching valve 53 to the two side, the third switching valve 54 to the side, and the first switching valve 44 to the side. The air blowing means 50 is driven in this state. Thus, the high-humidity air under the floor 9 shown as c is the intake pipe 4
8 is inhaled, the moisture is adsorbed by the adsorbent 27 through the air blowing path 51, the temperature becomes low and the humidity becomes high, and the first exhaust pipe 4
The underfloor 9 is blown as shown from 2 to d.
In this way, the stagnant air in the underfloor 9 is exhausted from the ventilation port 10 and is replaced with high-temperature and low-humidity air, so that the underfloor 9 becomes low in humidity.

During operation in the regeneration mode during dehumidification, the control means 22 sets the second switching valve 53 to the second side, the third switching valve 54 to the e side, and the first switching valve 44 to the low side. Side, and blower means 50 is driven in this state to regenerate heating means 2
8 is energized. In this way, the blower means 50 blows the outdoor air sucked from the second intake pipe 49 into the blower path 51, as shown by a, and the regenerative heating means 2
The air flow heated to a high temperature by 8 regenerates the adsorbent 27. The air flow that has passed through the adsorbent 27 is exhausted to the outside of the machine as indicated by e because the second exhaust pipe 43 is opened by the first switching valve 44.

As described above, according to the present embodiment, it is possible to realize a ventilation / dehumidification device having a simple structure, which can perform the ventilation operation and the dehumidification operation by one blowing means 50. Further, during ventilation, the outdoor air can be sent to the underfloor without passing through the adsorbent 27, and a highly efficient ventilation operation can be performed.

(Embodiment 8) Next, an eighth embodiment of the present invention will be described. FIG. 10 is a sectional view showing the ventilation / dehumidifying device of this embodiment. Reference numeral 55 is a first intake pipe that serves as both intake of underfloor air and supply of outdoor air, and 57 is a second intake pipe that inhales outdoor air. The blower unit 56 blows the air sucked from the first intake pipe 55 or the second intake pipe 57 into the blowing passage 59. In the air blowing path 59,
The adsorbent 27, the regenerative heating means 28 that activates the adsorbent 27 upstream of the adsorbent 27, and the first exhaust pipe 42 that blows dry air connected through the first switching valve 44 under the floor.
And a second exhaust pipe 43. Further, the second intake pipe 57 is provided with a ventilation path 59 via a second switching valve 58.
Connected to Although not shown, a detection means 21 and a control means 22 are provided on the upper part of the main body. The second switching valve 58 closes the air passage 59 when the second intake pipe 57 is opened, and opens the air passage 59 when the second intake pipe 57 is closed.

The operation of this embodiment will be described below. At the time of ventilation operation, the control means 22 closes the second switching valve 58 to the side to drive the air blowing means 56. That is,
The blower means 56 supplies the low-humidity outdoor air sucked from the second intake pipe 57 to the first intake pipe 55 as indicated by a.
The air is blown and supplied to the underfloor 9. Therefore, the stagnant air in the underfloor 9 is exhausted to the outside through the ventilation port 10 and is replaced with low-humidity outside air, so that the underfloor 9 becomes low in humidity.

Further, during operation in the adsorption mode during dehumidification, the control means 22 closes the second switching valve 58 to the chi side and the first switching valve 44 to the a side, and the blowing means 56 in the reverse direction. It is driven to rotate. In this way, as shown by b, the blower means 56 sucks the high-humidity air that has stagnated from the underfloor 9 from the first intake pipe 55 and blows the air through the blower path 59. The blown airflow is adsorbed with moisture by the adsorbent 27 to become high temperature and low humidity, and is blown from the first exhaust pipe 42 to the underfloor 9 as indicated by d. In this way, the stagnant air in the underfloor 9 is exhausted from the ventilation port 10 and is replaced with high-temperature and low-humidity air, so that the underfloor 9 becomes low in humidity.

Further, during the operation in the regeneration mode at the time of dehumidification, the control means 22 similarly moves the second switching valve 58 to the chi side.
The first switching valve 44 is closed to the side b, and in this state, the blowing means 56 is driven in the same direction as the adsorption mode to energize the regeneration heating means 28. In this way, the blower unit 56 blows the air sucked from the first intake pipe 55 shown as b into the blower passage 59, and the airflow heated to a high temperature by the regenerative heating unit 28 regenerates the adsorbent 27. is there. The air flow that has passed through the adsorbent 27 is exhausted to the outside of the machine as indicated by e because the second exhaust pipe 43 is opened by the first switching valve 44.

As described above, according to this embodiment, by controlling the rotation direction of the blower means 56, one blower means 56 and two first changeover valve 44 and second changeover valve 58 are provided. The ventilation dehumidifying device is capable of both ventilation operation and dehumidification operation by the switching valve.

(Ninth Embodiment) Next, a ninth embodiment of the present invention will be described. FIG. 11 is a sectional view showing the main body of the ventilation / dehumidification device of this embodiment. The blower means 61 is the intake pipe 6
The outdoor air sucked from 0 is blown into the blowing path 62. In the air flow path 62, the adsorbent 27 and the regenerative heating means 28 provided on the upstream side of the adsorbent 27 for activating the adsorbent,
A first exhaust pipe 42 that blows dry air under the floor connected through a first switching valve 44, a second exhaust pipe 43 that exhausts the air flow blown by the blowing unit 61 to the outside of the machine, and a second exhaust pipe 43. A third exhaust pipe 64 that blows ventilation air connected via the switching valve 63 to the underfloor 9 is provided. The second switching valve 63 closes the air passage 62 when the third exhaust pipe 64 is opened, and blows the air passage 62 when the third exhaust pipe 64 is closed.
It works like opening. Further, although not shown, a detection means 21 and a control means 22 are provided on the upper part of the main body.

The operation of this embodiment will be described below. At the time of ventilation operation, the control means 22 closes the second switching valve 63 on the side of c and drives the blowing means 61. That is,
The blower means 61 has an intake pipe 60 as shown by a.
The low-humidity outdoor air sucked from the air is blown from the third exhaust pipe 64 to the underfloor 9 as shown by b. Therefore, the stagnant air in the underfloor 9 is exhausted to the outside through the ventilation port 10 and is replaced with low-humidity outside air, so that the underfloor 9 becomes low in humidity.

During operation in the adsorption mode during dehumidification, the control means 22 drives the blowing means 61 by closing the second switching valve 63 on the two side and the first switching valve 44 on the a side. Is. In this way, the air blowing means 61 sucks in high-humidity outdoor air from the intake pipe 60 and sends it to the air blowing path 62, as indicated by a. In this way, as indicated by c, the blown airflow adsorbs moisture by the adsorbent 27, becomes high temperature and low humidity, and is blown from the first exhaust pipe 42 to the underfloor 9. In this way, the stagnant air in the underfloor 9 is exhausted from the ventilation port 10 and is replaced with high-temperature and low-humidity air, so that the underfloor 9 becomes low in humidity.

Further, during operation in the regeneration mode during dehumidification, the control means 22 similarly moves the second switching valve 63 to the two side.
The first switching valve 44 is closed to the side b, and in this state, the blowing means 6
1 is driven and the regeneration heating means 28 is energized.
In this way, the blowing means 61 blows the air sucked from the intake pipe 60 into the blowing path 62, as indicated by a.
As indicated by c, the air flow heated to a high temperature by the regeneration heating means 28 regenerates the adsorbent 27. The high-humidity airflow that has passed through the adsorbent 27 is exhausted to the outside of the machine as indicated by e because the second exhaust pipe 43 is opened by the first switching valve 44.

As described above, according to the present embodiment, the flow of air is simplified so that the outside air is sucked in during both ventilation and dehumidification in the regeneration mode operation and the adsorption mode operation. Therefore, since the air under the floor 9 is not used during the regeneration mode operation particularly during dehumidification, there is no inflow of outdoor air from the ventilation port 10, and the underfloor 9 can be maintained at a low humidity.

At this time, as shown in FIG. 12, the first exhaust pipe 42 is connected to the third exhaust pipe 64 so that the switching timing of the first switching valve 44 and the second switching valve 63 are changed. By synchronizing the switching timing of the above, the ventilation dehumidifying device can be realized which has only one connection port for intake and exhaust under the floor and is easy to install. That is, when the first exhaust pipe 42 is opened by the first switching valve 44, the second switching valve 63 closes the third exhaust pipe 64, and by the first switching valve 44. First exhaust pipe 42
Is closed, the second switching valve 63 is controlled to open the third exhaust pipe 64 so that the first exhaust pipe 42 and the third exhaust pipe 64 do not open at the same time. It is something to do.

(Tenth Embodiment) Next, a tenth embodiment of the present invention will be described. FIG. 13A is a side sectional view showing the vicinity of the first switching valve used in the ventilation / dehumidifying device of the present embodiment, and FIG. 13B is a plan sectional view of the same. The first switching valve used in the present embodiment is composed of a cylindrical wind tunnel 65 and a motor 66 arranged above the wind tunnel 65 for rotating the wind tunnel 65. The first exhaust pipe 42 and the second exhaust pipe 43 are connected to the side surface of the wind tunnel 65, and the air blowing path 18 is connected to the bottom surface. The wind tunnel 65 has an opening 65a on the side surface.
, A semicircular opening 65b on the bottom, and the adsorbent 2 on the center.
7. That is, the wind tunnel 65 is divided into two parts by the adsorbent 27 provided at the center, and the outer peripheral surface of the adsorbent 27 and the inner wall surface of the wind tunnel 65 are slid and air-sealed. In addition, the first exhaust pipe 42 and the second exhaust pipe 43
Is connected to the opening 65a when the wind tunnel 65 is rotated.

The operation of this embodiment will be described below. In the adsorption mode operation during dehumidification, the control means 22 energizes the motor 66 to rotate the wind tunnel 65 and adjust the opening 65a to be connected to the first exhaust pipe 42. In this state, the air flow blown from the blowing path 18 is
Through the adsorbent 27 provided at the center of the wind tunnel 65 to become high-temperature dry air, which is blown to the exhaust pipe 42 through the opening 65a. Therefore, high-temperature dry air is blown to the underfloor 9,
Underfloor 9 has low humidity. Further, in the regeneration mode operation during dehumidification, the control means 22 energizes the motor 66 to turn on the wind tunnel 6
5 is rotated 180 ° so that the opening 65a has the second exhaust pipe 43
To be connected to. In this state, if the regeneration heating means 28 (not shown) is energized, the high temperature airflow passes through the adsorbent 27 from the opening 65b and the second exhaust pipe 4
It flows to 3. The adsorbent 27 is activated by this high temperature air, and the humidified air flow is absorbed by the second exhaust pipe 4.
It is exhausted from 3 to the outside of the aircraft.

As described above, according to this embodiment, the adsorbent 2 for the cylindrical wind tunnel 65 used as the first switching valve is used.
Since the direction of the air flowing through 7 is switched between the adsorption mode operation and the regeneration mode operation, dust is unlikely to adhere to the adsorbent 27.

(Embodiment 11) Next, an eleventh embodiment of the present invention will be described. FIG. 14A is a side sectional view showing the structure of the ventilation / dehumidifying device of this embodiment. Reference numeral 17 denotes an air blowing unit that blows the air sucked from the air inlet 16, and the adsorbent 27 shown in FIG. 14B is provided in the air blowing path 18 that the air blowing unit 17 blows. Further, on the upstream side of the adsorbent 27, a regeneration heating means 28 for activating the adsorbent 27 is provided.
Has been arranged. The adsorbent 27 is the support metal fittings 70a and 70b.
Is supported by a motor 71 (not shown) provided outside the air flow path 18. That is, when switching between the adsorption mode operation and the regeneration mode operation during dehumidification, the adsorbent 27 can be rotated to reverse the flow of air passing through the adsorbent 27. The periphery of the adsorbent 27 and the inner wall surface of the air passage 18 are slidable and sealed so that air does not leak. In addition, a first exhaust pipe 29 that blows dry air to the underfloor 9 in the blowing passage 18, a second exhaust pipe 30 that exhausts the air flow blown by the blowing unit 17 to the outside of the machine, and a first exhaust pipe 29. And a switching valve 31 for selectively opening and closing the second exhaust pipe 30. Also in this embodiment, the detection means 21 and the control means 22 not shown are provided.

The operation of this embodiment will be described below. When the humidity detected by the detection unit 21 is high, the control unit 22 executes the dehumidifying operation. That is, the high-humidity outdoor air blown by the blowing unit 17 comes into contact with the upstream surface of the adsorbent 27, which is shown as the flow a in the blowing path 18. In this way, the moisture of the outdoor air is adsorbed by the adsorbent 27, becomes a low humidity, and is blown from the first exhaust pipe 29 into the underfloor 9. When the adsorption mode operation for a predetermined time is completed in this way,
The control means 22 enters into the regeneration mode operation for recovering the activity of the adsorbent 27. That is, the switching valve 31 is set to the low side, the regeneration heating means 28 is energized, and the adsorbent 2
7 is rotationally driven to replace the upstream side with the b surface and the downstream side with the a surface. When the blowing means 17 is operated in this state, the air flow heated by the regeneration heating means 28 and having a high temperature is generated by the adsorbent 2
The adsorbent 27 is activated by contacting the adsorbent 7. Further, the high-humidity air containing the moisture released by the adsorbent 27 is exhausted to the outside of the machine through the second exhaust pipe 30.

Generally, the air taken in through the intake port 16 contains dust, and the air blown by the blowing means 17 deposits the dust on the upstream side of the adsorbent 27, that is, on the a-face during the adsorption mode operation. Let However, in this embodiment,
As described above, during the regeneration mode operation, the adsorbent 27 is rotated so that the surface b is on the upstream side. Therefore, the dust accumulated on the surface a is removed by the airflow that has passed through the adsorbent 27, and is discharged from the second exhaust pipe 30 to the outside of the machine together with the high-humidity air.

As described above, according to this embodiment, the adsorbent 2
Since dust is not deposited on the adsorbent 7, the amount of air passing through the adsorbent 27 does not decrease and the dehumidifying performance hardly deteriorates. Furthermore, the amount of moisture absorbed by the adsorbent 27 in the adsorption mode operation is large on the upstream side and small on the downstream side. Therefore, when the adsorbent 27 is rotated during the regeneration mode operation and the upstream side and the downstream side are reversed, a large amount of moisture is absorbed a.
Since the surface is on the downstream side, the amount of water desorbed from the adsorbent 27 is re-adsorbed on the adsorbent 27 as well.

In this embodiment, the adsorbent 27 is inverted every time the adsorption mode operation / regeneration mode operation of the dehumidifying operation is performed, but the adsorbent 27 is rotated at regular intervals even when the ventilation operation is performed. Even if it is driven, the same effect can be expected. That is, for example, the low-humidity outdoor air is sucked into the suction port 16
When the air is sucked in from the first exhaust pipe 29 and blown under the floor 9 through the adsorbent 27 having the a-side as the upstream side, the adsorbent 27 is rotated the next day and the b-side as the upstream side. Similarly, the ventilation operation is executed.

(Embodiment 12) Next, a twelfth embodiment of the present invention will be described. In this embodiment, as shown in FIG. 15, the adsorbent 27 is placed in the air flow path 18 in two directions a.
・ It is designed to be fixed to b. a is a direction in which the air passage 18 is closed, and b is a direction in which the air passage 18 is opened.

The operation of this embodiment will be described below. When the humidity detected by the detection unit 21 is high, the control unit 22 executes the dehumidifying operation. That is, the control means 22 controls the adsorbent 2
7 is the a direction and the switching valve 31 is the a side, and the blower means 1
The adsorption mode operation for operating No. 7 is executed. Blowing means 17
The outside air sucked and blown from the intake port 16 flows through the blowing path 18 and comes into contact with the adsorbent 27 controlled in the a direction. For this reason, high-humidity outside air is adsorbent 27
Moisture is absorbed by the first exhaust pipe 2 due to low humidity.
The air is blown into the floor 9 from below. The underfloor 9 is dried by this. In this way, when the activity of the adsorbent 27 decreases due to the adsorption mode operation for a predetermined time, the regeneration mode operation is executed. In this regeneration mode operation, the adsorbent 27 may be rotated halfway to be in the a direction, as in the eleventh embodiment. Further, with the switching valve 31 on the low side, the blower means 17 and the regenerative heating means 28 are energized. Therefore, the outdoor air blown by the blowing unit 17 is heated by the regenerating heating unit 28 to reach a high temperature and comes into contact with the adsorbent 27. In this way, the adsorbent 28 releases the adsorbed moisture and is activated, and the highly humid outdoor air is exhausted from the second exhaust pipe 30 to the outside of the machine. By repeating the adsorption mode operation and the regeneration mode operation, the drying of the underfloor 9 is promoted.

When the humidity detected by the detecting means 21 is low,
The control means 22 performs ventilation operation. That is, the adsorbent 2
After rotationally driving 7 in the b direction, the blower means 17 is operated with the switching valve 31 on the a side. The low-humidity outside air sucked and blown from the intake port 16 is blown from the first exhaust pipe 29 to the underfloor 9. At this time, in this embodiment, since the adsorbent 27 is oriented in the b direction, a large amount of air is blown to the underfloor 9. That is, the pressure loss due to the adsorbent 27 does not occur. Further, for the same reason, dust is unlikely to accumulate on the surface of the adsorbent 27.

As described above, according to this embodiment, since the adsorbent 27 is rotated at the start of the ventilation operation to open the ventilation path 18, dust is unlikely to adhere to the adsorbent 27, and the underfloor is prevented. The drying effect of can be enhanced. Further, since there is no pressure loss due to the adsorbent 27, it is possible to obtain a large amount of air blown to the underfloor 9 in the ventilation operation.

(Thirteenth Embodiment) Next, a thirteenth embodiment of the present invention will be described. 16A is a side sectional view showing the configuration of the ventilation / dehumidifying device of this embodiment, and FIG. 16B is a plan sectional view thereof. An air blower 76 for blowing the outdoor air p sucked from the intake pipe 75, a regenerative heater 28, and a cylindrical first wind tunnel 78 are provided above the air blow passage 77. As shown in FIG. 16 (b), the first wind tunnel 78 has a space portion i and a space portion j partitioned by the adsorbent 27 arranged inside the first wind tunnel 78. In this embodiment, the ratio of the space portion i and the space portion j is about 1: 2. The space j is provided with a first exhaust pipe 81 connected to the outside of the machine.
Are connected. A disc-shaped air passage switching plate 79 having a fan-shaped opening 79a is provided at the bottom of the first wind tunnel 78 so as to contact the first wind tunnel 78. Airway switching plate 79
Is similarly rotated by a motor 66 provided at the bottom of the first wind tunnel 78. A second cylindrical wind tunnel 80 is connected to the air passage switching plate 79. Second wind tunnel 80
Is partitioned into a fan-shaped space portion k and a fan-shaped space portion 1 by a partition plate 80a. The ratio of the space portion k to the space portion 1 is about 2: 1 in this embodiment. A first exhaust pipe 81 for exhausting the airflow to the outside of the machine is connected to the space l. In addition, a second exhaust pipe 82 that blows the airflow under the floor is connected to the space portion k. That is, the space portion i of the first wind tunnel 78 matches the space portion k of the second wind tunnel 80 due to the opening 79a of the air passage switching plate 79, and the first wind tunnel 78
The space portion j of is the same as the space portions k and 1 of the second wind tunnel 80 due to the opening 79a of the air passage switching plate 79.

The operation of this embodiment will be described below. FIG. 17 is an explanatory diagram showing the operation during ventilation operation. The air flow p of the outdoor air sucked from the intake pipe 75 by the air blowing unit 76 is sent to the first wind tunnel 78 through the air blowing path 77. At this time, the air passage switching plate 79 has the opening 79a on the space i side. Therefore, the airflow passing through the first wind tunnel 78 passes through the opening 79a of the air passage switching plate 79 without passing through the adsorbent 27 and is guided to the space portion k of the second wind tunnel 80, where the space portion k It reaches the second exhaust pipe 82 connected to. That is, the air blowing means 76 sucks air from the intake pipe 75.
The blown outside air is blown from the second exhaust pipe 82 to the underfloor 9.

In the adsorption mode in the dehumidifying operation, as shown in FIG. 18, the opening 79a of the air passage switching plate 79 is in a position overlapping the space j. Therefore, the outside air taken in from the intake pipe 75 by the air blower 76 passes through the adsorbent 27 of the first wind tunnel 78, and from the space j, the opening 7 of the air passage switching plate 79.
Reach 9a. At this time, the air flow comes into contact with the adsorbent 27, so that moisture is adsorbed by the adsorbent 27 and becomes high-temperature dry air. The high-temperature dry air that has passed through the opening 79a is guided to the space k of the second wind tunnel 80 and blown below the floor from the second exhaust pipe 82.

In the dehumidifying operation in the regeneration mode, as shown in FIG. 19, the opening 79a of the air passage switching plate 79 has the space j of the first wind tunnel 78 and the space of the second wind tunnel 80. It is the same as l. At this time, the regenerative heating means 2
8 is energized. Therefore, the outside air taken in by the blower means 77 from the fifth intake pipe 75 is heated by the regeneration heating means 28 to a high temperature, passes through the adsorbent 27 of the first wind tunnel 78, and switches the air passage from the space j. The opening 79a of the plate 79 is reached. At this time, since the air flow contacts the adsorbent 27, the adsorbent 27 releases water and is activated. The high-humidity airflow that has passed through the opening 79 a is guided to the space portion 1 of the second wind tunnel 80 and is exhausted to the outside of the machine from the first exhaust pipe 81.

As described above, according to this embodiment, the ventilation operation and the dehumidifying operation can be performed by one air blowing unit 76, and the adsorption mode and the dehumidifying operation in the ventilation and dehumidifying operation can be performed by the one air passage switching plate 79. It is possible to realize a ventilation / dehumidification device having a very simple structure in which the air passages can be switched among the three types of the regeneration mode in (1) and the air is blown to the underfloor only at one location of the second exhaust pipe 82.

[0089]

According to the first aspect of the present invention, the blowing means for sucking and blowing the outdoor air from the intake port, the heating means provided in the blowing path blown by the blowing means, and the blowing air under the floor. Exhaust pipe, as a configuration including a control means for controlling the energization of the heating means according to the detected humidity of the detection means for detecting the humidity of the outside air, to raise the temperature of the outdoor air by the heating means, if necessary, The ventilation dehumidifying device that effectively dries the underfloor by blowing hot air under the floor is realized.

According to the second aspect of the present invention, an air blower for sucking and blowing the outdoor air from the air inlet, an adsorbent provided in the air blowing path blown by the blower, and an exhaust for blowing dry air under the floor. (EN) A simple ventilation and dehumidifying device having a pipe, which adsorbs moisture of outdoor air by an adsorbent and blows dry air under the floor to effectively dry the underfloor.

According to the third aspect of the invention, the air blowing means for sucking and blowing the outdoor air from the air inlet, the adsorbent provided in the air blowing path blown by the air blowing means, and the adsorbent provided upstream of the adsorbent are provided. Regeneration heating means for activating the adsorbent, a first exhaust pipe for blowing dry air under the floor, a second exhaust pipe for discharging the air flow blown by the blowing means to the outside of the machine, and a first exhaust pipe The adsorbent is provided with a switching valve that selectively opens and closes the second exhaust pipe, and a control unit that controls energization to the regeneration heating unit according to the detected humidity of the detection unit that detects the humidity of the outside air. By adsorbing the moisture of the outdoor air and sending it as dry air under the floor, the adsorbent is activated to realize a ventilation / dehumidifying device having a high dehumidifying capacity.

According to a fourth aspect of the present invention, there is provided an air blowing means for sucking and blowing outdoor air from an air inlet, an air blowing path for the air blowing means, and an adsorbing path and a regenerating path forming a part of the air blowing path. An adsorbent that rotates the adsorption path and the regeneration path, a first exhaust pipe that blows dry air under the floor connected to the adsorption path, and an adsorbent that is provided on the regeneration path upstream of the adsorbent Control the electricity supply to the regeneration heating means according to the humidity of the regeneration heating means that activates the air, the second exhaust pipe that discharges the air flow connected to the regeneration path to the outside of the machine, and the detection humidity that detects the humidity of the outside air. The present invention realizes a ventilation / dehumidifying device having a simple structure, which is capable of performing a ventilation operation and a continuous dehumidification operation, as a configuration including a control unit for controlling the ventilation dehumidification operation.

According to a fifth aspect of the present invention, a blower means for sucking and blowing outdoor air from an intake port, an evaporator provided in a blower path blown by the blower means, the evaporator and a closed circuit are formed. A condenser and a compressor, an exhaust pipe that blows dry air under the floor connected to the ventilation path, and a control unit that controls energization of the compressor according to the detected humidity of the detection unit that detects the humidity of the outside air. As a configuration, a simple ventilation dehumidifying device having a configuration in which dry air obtained by dehumidifying outdoor air is blown below the floor to effectively ventilate and dehumidify the underfloor with energy saving is realized.

According to the sixth aspect of the present invention, the first blower means for sucking and blowing underfloor air from the intake pipe, the adsorbent provided in the blower path blown by the first blower, and the adsorbent A regeneration heating means for activating the adsorbent provided on the upstream side of
A first exhaust pipe that blows dry air under the floor, a second exhaust pipe that discharges the air flow blown by the blowing means to the outside of the machine, and selectively opens and closes the first exhaust pipe and the second exhaust pipe Switching valve,
Second blower for sucking the outside air and blowing it from the third exhaust pipe, and energizing each blower according to the detected humidity of the detecting means for detecting the humidity of the outside air, switching control of the switching valve, regenerative heating means When the outdoor air has low humidity, ventilation operation is performed to blow the outdoor air under the floor, and when the outdoor air has high humidity, the air under the floor is sucked and adsorbed. It blows under the floor as dry air that adsorbs moisture by the material, and when the activity of the adsorbent becomes low, the regeneration heating means is energized to activate the adsorbent, effectively irradiating the underfloor regardless of the humidity condition of the outside air. It realizes a ventilation dehumidifying device that can be dried.

According to the invention described in claim 7, a first intake pipe for intake of underfloor air, a second intake pipe for intake of outdoor air connected to the first intake pipe, and a first intake pipe Blowing means for blowing the air taken in from the pipe or the second intake pipe,
The adsorbent provided in the air blowing path of the air blowing means, the regenerative heating means for activating the adsorbent provided upstream of the adsorbent, the first exhaust pipe for blowing dry air under the floor, and the air blowing means A second exhaust pipe that discharges the generated airflow to the outside of the aircraft, a third exhaust pipe that blows ventilation air under the floor, a first switching valve that switches between the first exhaust pipe and the second exhaust pipe, When the third exhaust pipe is opened, the ventilation path is closed, and when the third exhaust port is closed, the ventilation path is opened. A third switching valve that switches between intake air from the intake pipe, detection means that detects the humidity of the outside air, energization of the blowing means and control and regeneration of the switching position of each switching valve according to the detected humidity of the detection means As a configuration provided with a control means for controlling the energization of the heating means, a blower used for ventilation operation and a dehumidifying operation. It realizes a simple ventilation dehumidifier configuration and blower can be shared for use in.

According to the invention described in claim 8, a first intake pipe serving both as intake of underfloor air and supply of outdoor air, a second intake pipe for intake of outdoor air, and a first intake pipe Blowing means for blowing the air taken in from the intake pipe or the second intake pipe, an adsorbent provided in the blowing path of the blowing means, and a regeneration heating means for activating the adsorbent provided on the upstream side of the adsorbent A first exhaust pipe that blows dry air under the floor, a second exhaust pipe that discharges the air flow blown by the blowing means to the outside of the machine, and a first exhaust pipe that switches between the first exhaust pipe and the second exhaust pipe. One switching valve and a second switching valve that closes the ventilation path when the second intake pipe is open and opens the ventilation path when the second intake pipe is closed, and detects the humidity of the outside air Detecting means, the switching position of each of the switching valves, the energization of the regenerative heating means, and the blowing air according to the detected humidity of the detecting means. A ventilation / dehumidification device capable of performing ventilation and dehumidification by one blower means by switching the blower direction of the blower means during ventilation and dehumidification as a configuration including control means for controlling the blower direction of the stages To do.

According to a ninth aspect of the present invention, there is provided an air blowing means for blowing the outdoor air sucked from the intake pipe, an adsorbent provided in the air blowing path of the air blowing means, and an adsorbent provided upstream of the adsorbent. Regenerating and heating means for activating the above, a first exhaust pipe for blowing dry air under the floor, a second exhaust pipe for discharging the air flow blown by the blowing means to the outside of the machine, and a first exhaust pipe for blowing ventilation air under the floor. When the third exhaust pipe, the first switching valve that switches between the first exhaust pipe and the second exhaust pipe, and the third exhaust pipe are opened, the ventilation path is closed and the third exhaust pipe is closed. In this case, a second switching valve that opens the ventilation path, a detection unit that detects the humidity of the outside air, the switching positions of the switching valves and the energization of the regenerative heating unit according to the detected humidity of the detection unit, and the blowing air As a structure with a control means for controlling the energization of the means, it is possible to use the outside during ventilation and dehumidification. The so as to use, it realizes a simple ventilation dehumidifier configuration capable of maintaining the underfloor even during reproduction of the adsorbent in a low humidity state.

According to a tenth aspect of the present invention, the blower means for blowing the outdoor air sucked from the intake pipe, the adsorbent provided in the blower path of the blower means, and the adsorbent provided on the upstream side of the adsorbent. Regenerating and heating means for activating the above, a first exhaust pipe for blowing dry air under the floor, a second exhaust pipe for discharging the air flow blown by the blowing means to the outside of the machine, and a first exhaust pipe for blowing ventilation air under the floor. When the third exhaust pipe, the first switching valve that switches between the first exhaust pipe and the second exhaust pipe, and the third exhaust pipe are opened, the ventilation path is closed and the third exhaust pipe is closed. In this case, a second switching valve that opens the ventilation path, a detection unit that detects the humidity of the outside air, the switching positions of the switching valves and the energization of the regenerative heating unit according to the detected humidity of the detection unit, and the blowing air And a control means for controlling energization to the means, the first exhaust pipe to the third exhaust pipe Then, the control means causes the first switching valve to close the first exhaust pipe when the second switching valve opens the third exhaust pipe, and the second switching valve causes the third exhaust pipe to close. When the pipe is closed, the first switching valve is controlled so that the first exhaust pipe is opened so that the intake / exhaust connection to the underfloor can be installed in one place, and the construction is simple. It realizes a ventilation dehumidifier.

In the eleventh aspect of the present invention, in particular, the switching valve for switching the first and second exhaust pipes has the adsorbent in the air passage arranged inside and the first and second air passages on the bottom and side surfaces. Alternatively, it is possible to switch the directions of the air flowing through the adsorbent at the time of regeneration and at the time of adsorption by using a configuration including a cylindrical wind tunnel having an opening connected to the second exhaust pipe and a motor for rotating the wind tunnel. As a result, it is possible to realize a ventilation / dehumidifying device which has high durability and a simple structure because dust is unlikely to adhere to the adsorbent.

According to the twelfth aspect of the present invention, the blowing means for blowing the air taken in from the intake pipe, the adsorbent rotatably provided in the blowing path blown by the blowing means, and the adsorbent upstream of the adsorbent are provided. The adsorbent is provided with a regenerative heating means for activating the adsorbent, and the adsorbent is configured to be rotatable so that dust does not easily adhere to the adsorbent, and the dehumidification performance is high and the performance is less deteriorated. It realizes the device.

According to a thirteenth aspect of the present invention, an air blowing means for blowing the air taken in from the intake pipe, an adsorbent rotatably provided in the air blowing path blown by the air blowing means, and an adsorbent upstream of the adsorbent. Equipped with a regenerative heating means for activating the adsorbent provided and a control means for controlling the energization of the heating means according to the detected humidity of the detecting means for detecting the humidity of the outside air, and rotating the adsorbent at the start of the ventilation process. By making the flow of air passing through the adsorbent in the opposite direction, it is possible to realize a simple ventilation / dehumidification device having a structure in which dust is unlikely to adhere to the adsorbent, dehumidification performance is high, and performance degradation is small.

According to a fourteenth aspect of the present invention, the blowing means for blowing the air taken in from the intake pipe, the adsorbent provided rotatably in the blowing path blown by the blowing means, and the upstream side of the adsorbent. The adsorbent is equipped with a regeneration heating means for activating the adsorbent provided and a control means for controlling energization to the regeneration heating means according to the detected humidity of the detecting means for detecting the humidity of the outside air. By rotating the ventilation path to open the ventilation path, it is possible to realize a ventilation / dehumidification device that makes it difficult for dust to adhere to the adsorbent and increases the amount of ventilation air in the ventilation process to enhance the drying effect under the floor. .

According to a fifteenth aspect of the present invention, there is provided an air blowing means for blowing the outdoor air sucked from the intake pipe, a regeneration heating means for activating the adsorbent provided in the air blowing path of the air blowing means, and an adsorbent. A cylindrical first wind tunnel partitioning the ventilation path, a disk-shaped air passage switching plate having an opening provided so as to contact the bottom of the first wind tunnel, and the air passage switching plate. A second wind tunnel having a cylindrical shape and a motor for rotating the air passage switching plate are provided, and the second wind tunnel has a ventilation path partitioned by a partition plate. A first exhaust pipe for exhausting to, the second ventilation pipe for blowing air under the floor to the other ventilation passage and a third exhaust pipe are connected, and the air passage switching plate adsorbs outdoor air. Through the first exhaust pipe, through the adsorbent, through the second exhaust pipe, directly through the third exhaust without passing through the adsorbent A structure in which to switch to any of evacuating the can and dehumidifying operation and ventilation operation by one of the blowing means, the ventilation operation in one of the disk,
It is intended to realize a simple ventilation / dehumidifying device having a configuration capable of switching three air passages during adsorption operation / regeneration operation in a dehumidification process.

According to the sixteenth aspect of the present invention, a ventilation port panel having one or a plurality of communication pipes is fixed to the building so as to cover the ventilation port, and the main body constituting the ventilation / dehumidifying device and the underfloor are communicated with each other. As a configuration, the ventilation / dehumidifying device that can be installed without processing the existing ventilation port is very easy to construct.

[Brief description of drawings]

FIG. 1 is a side sectional view showing a configuration of a ventilation and dehumidifying apparatus according to a first embodiment of the present invention.

FIG. 2 is a characteristic diagram showing changes in underfloor humidity when the ventilation dehumidifier is operated.

FIG. 3 is a side sectional view showing the structure of the ventilation dehumidifying device of the second embodiment.

FIG. 4 is a characteristic diagram showing the adsorption characteristics of the adsorbent.

FIG. 5 is a side sectional view showing the structure of the ventilation / dehumidifying device of the third embodiment.

FIG. 6 is a side sectional view showing a structure of a ventilation / dehumidifying device according to a fourth embodiment of the same.

FIG. 7 is a side sectional view showing the structure of the ventilation / dehumidifying device of the fifth embodiment.

FIG. 8 is a side sectional view showing the structure of the ventilation dehumidifying device of the sixth embodiment.

FIG. 9 is a side sectional view showing the structure of the ventilation dehumidifying device of the seventh embodiment.

FIG. 10 is a side sectional view showing the structure of the ventilation dehumidifying device of the eighth embodiment.

FIG. 11 is a side sectional view showing a configuration of a ventilation / dehumidifying device according to a ninth embodiment of the same.

FIG. 12 is a side sectional view showing a structure in which the first exhaust pipe is connected to the third exhaust pipe.

FIG. 13 (a) is a view showing the structure of a first switching valve used in the ventilation dehumidifying device of the tenth embodiment.
(B) AA sectional view (b) Same, FIG. 13 (a) BB sectional view

FIG. 14 (a) is a side sectional view showing the structure of the ventilation / dehumidifying device according to the eleventh embodiment. FIG. 14 (b) is a perspective view showing the structure of the adsorbent.

FIG. 15 is a side sectional view showing the structure of the ventilation / dehumidifying device of the twelfth embodiment.

16 (a) is a sectional view taken along the line AA of FIG. 16 (b) showing the configuration of the ventilation / dehumidifying device of the thirteenth embodiment. FIG. 16 (b) is a sectional view taken along the line BB of FIG. 16 (a).

FIG. 17 is an explanatory view explaining the operation of the ventilation dehumidifying device.

FIG. 18 is an explanatory view explaining the operation of the ventilation dehumidifying device.

FIG. 19 is an explanatory diagram explaining the operation of the ventilation dehumidifying device.

FIG. 20 is a cross-sectional view showing the configuration of a conventional underfloor ventilation device.

FIG. 21 is a plan view showing an installation example of the same.

FIG. 22 is a wiring diagram showing electric wiring of the same.

FIG. 23 is a characteristic diagram showing changes in underfloor humidity when the underfloor ventilation device operates.

[Explanation of symbols]

 16 Intake Port 17 Blower Means 18 Blower Route 18a Adsorption Route 18b Regeneration Route 19 Heating Means 20 Exhaust Pipe 21 Detecting Means 22 Control Means 27 Adsorbent 28 Regeneration Heating Means 29 First Exhaust Pipe 30 Second Exhaust Pipe 31 Switching Valve 33 Evaporator 34 Condenser 35 Compressor 40 Intake pipe 41 First blower means 42 First exhaust pipe 43 Second exhaust pipe 44 Switching valve 46 Third exhaust pipe 47 Second blower means 48 First intake pipe 49 Second intake pipe 50 Blower means 51 Blower path 52 Third exhaust pipe 53 Second switching valve 54 Third switching valve 55 First intake pipe 56 Blower means 57 Second intake pipe 58 Second switching valve 60 Intake Pipe 61 Blower Means 62 Blower Route 63 Second Switching Valve 64 Third Exhaust Pipe 65 Wind Tunnel 65a Opening 65b Opening 70a Support Metal 70b Support Metal 1 motor 75 intake pipe 76 blowing means 77 blow path 78 first wind tunnel 79 air path switching plate 80 a second wind tunnel 81 the first exhaust pipe 82 a second exhaust pipe

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Kenji Koshiga 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd.

Claims (16)

[Claims] 1. A blower means for sucking and blowing outdoor air from an intake port, a heating means provided in a blower path blown by the blower means, an exhaust pipe for blowing air under the floor, and a humidity of outside air. A ventilation / dehumidifying device comprising: a control unit that controls energization to the heating unit according to the detected humidity of the detection unit. 2. A ventilation / dehumidification device comprising: a blower unit for sucking and blowing outdoor air from an intake port; an adsorbent provided in a blower route blown by the blower unit; and an exhaust pipe for blowing dry air under the floor. apparatus. 3. A blowing means for sucking and blowing outdoor air from an intake port, an adsorbent provided in an air blowing path blown by the blowing means, and a regeneration for activating the adsorbent provided on the upstream side of the adsorbent. A heating means, a first exhaust pipe for blowing dry air under the floor, a second exhaust pipe for discharging the air flow blown by the blowing means to the outside of the machine, a first exhaust pipe and a second exhaust pipe A ventilation / dehumidifying device comprising: a switching valve that selectively opens and closes; and a control unit that controls energization to a regenerative heating unit according to the detected humidity of a detection unit that detects the humidity of the outside air. 4. An air blowing unit that inhales and blows outdoor air from an intake port, an air blowing route that the air blowing unit blows, an adsorption route and a regeneration route that form a part of the ventilation route, and the adsorption route and the regeneration route. And an adsorbent that rotates the adsorbent, a first exhaust pipe that blows dry air under the floor connected to the adsorbent path, and a regeneration heating unit that activates the adsorbent provided on the regeneration path upstream of the adsorbent. And a second exhaust pipe that discharges the airflow connected to the regeneration path to the outside of the machine, and a control unit that controls energization to the regeneration heating unit according to the detected humidity of the detection unit that detects the humidity of the outside air. Ventilation dehumidifier. 5. A blower means for sucking and blowing outdoor air from an intake port, an evaporator provided in a blower path blown by the blower means, a condenser and a compressor forming a closed circuit with the evaporator, A ventilation / dehumidifying device comprising an exhaust pipe that blows dry air under the floor, which is connected to a ventilation path, and a control unit that controls energization to a compressor according to the detected humidity of a detection unit that detects the humidity of the outside air. 6. A first blower for sucking and blowing underfloor air from an intake pipe, an adsorbent provided in a blower path blown by the first blower, and an adsorbent provided upstream of the adsorbent. Regeneration heating means for activating the material, a first exhaust pipe for blowing dry air under the floor, a second exhaust pipe for discharging the air flow blown by the blowing means to the outside of the machine, a first exhaust pipe and a first exhaust pipe. A switching valve that selectively opens and closes the second exhaust pipe, a second blower that sucks outside air and blows it from the third exhaust pipe, and each blower according to the detected humidity of the detector that detects the humidity of the outside air. A ventilation / dehumidifying device comprising a control means for controlling energization of the means, switching control of a switching valve, and energization of the regenerative heating means. 7. A first intake pipe for intake of underfloor air,
A second intake pipe connected to the first intake pipe for intake of outdoor air, a blower for blowing the air taken in from the first intake pipe or the second intake pipe, and a blower path in the blower The adsorbent provided, the regeneration heating means for activating the adsorbent provided on the upstream side of the adsorbent, the first exhaust pipe for blowing dry air under the floor, and the air flow blown by the blower is discharged to the outside of the machine. Second exhaust pipe, a third exhaust pipe for sending ventilation air to the underfloor, a switching valve for switching between the first exhaust pipe and the second exhaust pipe, and when the third exhaust pipe is opened A second switching valve that closes the ventilation path and opens the ventilation path when the third exhaust port is closed, and switches between intake air from the first intake pipe and intake air from the second intake pipe. Three switching valves, detecting means for detecting the humidity of the outside air, and energizing the blowing means according to the detected humidity of the detecting means Control and ventilation dehumidifier and control means for controlling the energization of the regeneration heating means switching position of each switching valve. 8. A first intake pipe serving both as intake of underfloor air and supply of outdoor air, a second intake pipe for intake of outdoor air, and a first intake pipe or a second intake pipe. Blower means for blowing the air taken in from the intake pipe, adsorbent provided in the air passage of the blower means, regeneration heating means for activating the adsorbent provided upstream of the adsorbent, and dry air under the floor. A first exhaust pipe that blows air, a second exhaust pipe that discharges the air flow blown by the blowing means to the outside of the machine, a switching valve that switches between the first exhaust pipe and the second exhaust pipe, and a second intake air A second switching valve that closes the air flow path when the pipe is opened, and opens the air flow path when the second intake pipe is closed, a detection unit that detects the humidity of the outside air, and a detected humidity of the detection unit. Control means for controlling the switching position of each of the switching valves, the energization of the regenerative heating means, and the blowing direction of the blowing means in accordance with Ventilation dehumidifier with steps. 9. An air blowing means for blowing the outdoor air sucked from the intake pipe, an adsorbent provided in the air blowing path of the air blowing means, and a regeneration heating means for activating the adsorbent provided on the upstream side of the adsorbent. And a first exhaust pipe that blows dry air under the floor,
A second exhaust pipe for discharging the air flow blown by the blowing means to the outside of the machine, a third exhaust pipe for blowing ventilation air under the floor, and a switching valve for switching between the first exhaust pipe and the second exhaust pipe , A second switching valve that closes the air passage when the third exhaust pipe is opened, and opens the air passage when the third exhaust pipe is closed, and a detection unit that detects the humidity of the outside air, A ventilation dehumidifying device comprising: a switching position of each of the switching valves, energization of a regenerative heating unit, and a control unit for controlling energization of a blowing unit according to the detected humidity of the detecting unit. 10. An air blowing means for blowing the outdoor air sucked from the intake pipe, an adsorbent provided in the air blowing path of the air blowing means, and a regeneration heating means for activating the adsorbent provided upstream of the adsorbent. And a first exhaust pipe that blows dry air under the floor,
A second exhaust pipe for discharging the air flow blown by the blowing means to the outside of the machine, a third exhaust pipe for blowing ventilation air under the floor, and a switching valve for switching between the first exhaust pipe and the second exhaust pipe , A second switching valve that closes the air passage when the third exhaust pipe is opened, and opens the air passage when the third exhaust pipe is closed, and a detection unit that detects the humidity of the outside air, The control unit controls the switching position of each of the switching valves and the energization of the regenerative heating unit according to the detected humidity of the detection unit and the energization of the blower unit, and the first exhaust pipe serves as the third exhaust pipe. When the second switching valve opens the third exhaust pipe, the switching means closes the first exhaust pipe and the second switching valve closes the third exhaust pipe. The ventilation dehumidifier that controls the switching valve to open the first exhaust pipe when 11. A switching valve for switching between a first exhaust pipe and a second exhaust pipe has an adsorbent inside the air passage arranged therein, and the air passage is connected to the first and second exhaust pipes at a bottom portion and a side surface. The ventilation / dehumidifying device according to any one of claims 3 and 6 to 10, comprising a cylindrical wind tunnel having an opening for opening, and a motor for rotating the wind tunnel. 12. An air blower for blowing air taken in from an intake pipe, an adsorbent rotatably provided in a blower path blown by the air blower, and an adsorbent provided upstream of the adsorbent. A ventilation / dehumidifying device, wherein the adsorbent is rotatable. 13. An air blower for blowing the air taken in from an intake pipe, an adsorbent rotatably provided in an air blowing path blown by the air blower, and an adsorbent provided upstream of the adsorbent. A ventilation dehumidifying device, which is provided with a regenerative heating unit and a control unit that controls energization of the heating unit according to the detected humidity of the detection unit that detects the humidity of the outside air, and that rotates the adsorbent at the start of the ventilation process. . 14. An air blower for blowing air taken in from an intake pipe, an adsorbent rotatably provided in an air blowing path blown by the air blower, and an adsorbent provided upstream of the adsorbent. And a control means for controlling energization to the regeneration heating means in accordance with the detected humidity of the detection means for detecting the humidity of the outside air, and at the start of the ventilation process, the adsorbent is rotated to control the air flow path. Ventilation dehumidifier to open. 15. A blower means for blowing outdoor air sucked from an intake pipe, a regeneration heating means for activating an adsorbent provided in a blower path of the blower means, and a cylindrical shape having a ventilation path partitioned by the adsorbent. First wind tunnel, a disk-shaped air passage switching plate having an opening provided so as to contact the bottom of the first wind tunnel, and a cylindrical second wind provided in contact with the air passage switching plate. With a torso
A motor for rotating an air passage switching plate, the second wind tunnel has a ventilation plate partitioned by a partition plate, and one of the ventilation paths has a first exhaust pipe for exhausting air to the outside of the machine. A second exhaust pipe and a third exhaust pipe that blow air under the floor are connected to the other ventilation path, and the air passage switching plate allows outdoor air to pass through the adsorbent from the first exhaust pipe to the adsorbent. A ventilation / dehumidification device in which the exhaust gas is switched from the second exhaust pipe to the exhaust gas directly from the third exhaust pipe without passing through the adsorbent. 16. A ventilation opening panel having one or a plurality of communication pipes is fixed to a building so as to cover the ventilation opening, and the main body constituting the ventilation / dehumidifying device is communicated with the underfloor.
15. The ventilation dehumidifier according to any one of 15 to 15.