JPH09280600A - Air ventilation and dehumidifying device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable operation modes of dehumidifying operation, ventilating operation and stopping to be separately carried out in response to a temperature condition or a humidity condition of the surrounding atmosphere. SOLUTION: A calculation means 19 determines one of the operation modes of dehumidifying, ventilating or stopping operations in reference to information of at least one sensing means of a surrounding air temperature sensing means 16 or an outdoor humidity sensing means 17 for sensing a humidity of surrounding air. The control means 18 controls operations of the dehumidifying means 14 and the ventilation means 15 in response to this determination.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ventilation / dehumidifying device for ventilating / dehumidifying a space under a floor of a building of a general household.

[0002]

2. Description of the Related Art Bundle-type dwellings found in traditional dwellings in Japan have good air permeability under the floor of the house and are suitable for extending the life of a wooden house under hot and humid weather conditions. In recent years, since the underfloor is surrounded by a cloth foundation, it is a house with poor ventilation even though it has a slight ventilation opening.

[0003] For these reasons, in recent years, underfloor ventilation fans having the structure shown in FIG. 3 have been increasingly used in order to improve the 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. This ventilation fan body 2 is a part of a ventilation opening 10 provided at several places between the foundation 6 of the building and the base 7 of the building on the north side of the building or in the vicinity of the floor around the water such as a washroom, a bathroom, a kitchen, etc. It is provided using. FIG. 4 shows the electrical connection of this underfloor ventilation fan. The controller 11 includes a plurality of ventilation fan bodies 2a, 2b,
2c is controlled.

With the above configuration, the controller 11 operates the ventilation fan main body 2 for a predetermined time, generally from about 10:00 am to about 4:00 pm when the humidity of the outside air decreases.
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.

When the controller 11 has a built-in humidity sensor, the operation of the ventilation fan main body 2 is stopped when the humidity of the outside air is high, such as in rainy weather, and the ventilation fan is stopped only when the outside air is at a low humidity. The main body 2 is operated.

[0006]

The underfloor ventilation fan having the above-mentioned structure has a problem that the ventilation function is not sufficient. In other words, in the configuration in which the ventilation fan main body 2 is operated every day for a predetermined time only, when the humidity of the outside air is high such as in rainy weather, the high humidity of the outside air is taken under the floor, and conversely, the humidity under the floor is increased. . When the controller 11 has a built-in humidity sensor, the operation is stopped during a long period of high humidity such as the rainy season.

[0007]

SUMMARY OF THE INVENTION The present invention solves the problems of the conventional structure as described above. It is possible to selectively use the dehumidification / ventilation / stop operation modes depending on the temperature condition or the humidity condition of the outside air. This is a ventilation and dehumidifying device that can be used.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 is information of at least one of an outdoor temperature detecting means for detecting an outdoor temperature by an arithmetic means and an outdoor humidity detecting means for detecting an outdoor humidity. One of the operation modes of dehumidification / ventilation and stop is determined by the control means, and the control means controls the operation of the dehumidification means / ventilation means in accordance with this determination.

According to the second aspect of the invention, the computing means determines the dehumidifying mode when the temperature of the outdoor air is higher than the set temperature, and the stop mode when the temperature of the outdoor air is lower than the set temperature. Dehumidification mode operation is executed except when the temperature is low, and the dry air is sent under the floor.

According to the third aspect of the present invention, the calculation means determines the operation mode of dehumidification / ventilation / stop based on the information of the humidity detection means, and when the outdoor air is high humidity, the dehumidification mode operation is performed at low humidity. When it is, the stop mode operation or the ventilation mode operation is executed.

According to a fourth aspect of the present invention, the dehumidifying mode operation is executed when the outside air is above the set humidity, and the stop mode operation is executed when the outside air is below the set humidity. The air is dried and blown under the floor.

According to a fifth aspect of the present invention, the calculation means executes the dehumidification mode operation above the set humidity, and the ventilation mode operation below the set humidity, so that the humidity under the floor is high even if the humidity of the outside air is low. It makes it possible to dry the underfloor.

According to a sixth aspect of the present invention, by using both the humidity information detected by the humidity detecting means and the temperature information detected by the temperature detecting means, high temperature / high humidity / high temperature / low humidity / low temperature / high humidity / low temperature / low humidity are detected. Dehumidifying, ventilating and
The operation mode of stop is used properly.

The invention described in claim 7 is stopped when the temperature is low such as in winter or when the outside air is below the set humidity, and the dehumidifying mode operation is performed when the outside air is above the set temperature and above the set humidity at high temperature and high humidity. It is intended to be run to dry the underfloor.

According to the invention described in claim 8, the stop mode operation is performed below the set temperature, the dehumidification mode operation is performed above the set temperature and above the set humidity, and the ventilation mode operation is performed above the set temperature and below the set humidity. This is a ventilation dehumidifier that enables efficient and efficient operation.

According to a ninth aspect of the present invention, the calculation means is
Dehumidification mode operation is performed above the set humidity, ventilation mode operation is performed below the set humidity and above the set temperature, and stop mode operation is performed below the set humidity and below the set temperature. It is applied not only when the temperature is high but also when the temperature is low and the humidity is high so that it can respond even if the underfloor humidity rises due to the influence of indoor heating or the like.

According to the tenth aspect of the present invention, there is provided a ventilation dehumidifying device capable of executing power saving by the timekeeping means included in the computing means as an operating time zone during the daytime and a stoppage time zone at night.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIG. The same parts as those of the conventional example are denoted by the same reference numerals, and description thereof is omitted. Reference numeral 13 denotes a main body of the ventilating dehumidifier (hereinafter, simply referred to as main body 13). Inside thereof, a dehumidifying unit 14 for dehumidifying moisture in the air and a ventilating unit 15 for blowing outside air under the floor.
An outdoor temperature detecting means 16 for detecting an outdoor temperature, an outdoor humidity detecting means 17 for detecting an outdoor humidity (hereinafter simply referred to as a detecting means), and dehumidifying / dehumidifying information based on the information of the detecting means.
It is provided with a computing means 19 for determining one of the operation modes of ventilation and stop, and a control means 18 for controlling each means.

The dehumidifying means 14 uses an adsorbent such as silica gel or zeolite, or an evaporator.
A heat pump type using a condenser and a compressor can be used. A blower is used as the ventilation unit 15. A thermistor is used as the outdoor temperature detecting means 16, and a humidity sensor is used as the outdoor humidity detecting means 17. Further, a suction port 20 for sucking outside air is provided on the front surface of the main body 13, and a blower port 21 for blowing the air blown by the ventilation means 15 under the floor is provided on the back surface of the main body 13. 22 is a ventilation port panel.

The operation of the embodiment will be described below. The relative humidity of the outdoor air changes as shown in FIG. That is, when the weather is fine, the temperature rises during the daytime and the humidity decreases, and the humidity decreases as the temperature decreases in the evening.
In addition, when it is rainy, the humidity is high throughout the day, and the relative humidity does not decrease even in the daytime and remains high. Further, it is said that when the water content of wood is 20% or less, the growth of decay fungi and the like that rot the wood slows down. In order to maintain the water content of this wood below 20%, the relative humidity of the air around the wood is 8
It is a necessary condition that it is 0% or less. Therefore, in order to make the underfloor environment 80% or less relative humidity by ventilation,
For example, it is possible to set the relative humidity to 70% as the set humidity.

Therefore, in this embodiment, the calculating means 19 has a relative humidity of 70% as a setting reference, and when the humidity of the outside air detected by the outdoor humidity detecting means 17 is below the setting reference, it is judged that the weather is fine. To do. That is, in this case, the operation is performed in the ventilation mode or the stop mode. That is, the ventilation means 15 is operated under the ventilation mode by the control of the control means 18. In the stop mode, the dehumidifying means 14
The ventilation means 15 is in a standby state. When the ventilating means 15 is activated, the ventilating means 1 is introduced from the suction port 20.
The low-humidity outside air sucked by 5 is blown under the floor from the blower port 21.

Above the set humidity, the calculation means 19 judges that it is raining and instructs the control means 18 to perform dehumidification mode operation. The control means 18 drives the dehumidifying means 14 to dehumidify the high-humidity outdoor air to reduce the humidity to blow the air under the floor.

Further, decay fungi and mold are hard to act in a low temperature environment in winter. Therefore, in this embodiment, the calculation means 19 has 10 ° C. as the set temperature, and when the outside air temperature detected by the outdoor temperature detection means 16 is lower than the set temperature, the control means 18 operates in the stop mode. To instruct.

As described above, according to this embodiment, the ventilation mode operation is performed in fine weather, and the dehumidification mode operation is performed in rainy weather to dry the underfloor. In addition, the stop mode operation is performed at low temperatures such as in winter when it is difficult for decay fungi and mold to be active without making the humidity low.

At this time, the outdoor humidity detecting means 17
It is also possible to use only the outdoor temperature detecting means 16 without using. That is, the operation mode is determined based on the outside air temperature. In this case, the calculation means 19 has 10 ° C. as the set temperature, and when the outside air temperature detected by the outdoor temperature detection means 16 is lower than the set temperature, the control means 18 is instructed to perform the stop mode operation. However, above the set temperature, the dehumidification mode operation is instructed. In this way, the dry air dehumidified by the dehumidifying means 14 is constantly sent under the floor except when the temperature is low, at which the decay fungi and mold are hard to act.

It is also possible to use only the outdoor humidity detecting means 17 without using the outdoor temperature detecting means 16. That is, the operation mode is determined based on the outside air humidity. In this case, the calculation means 19 has a relative humidity of 70% as a setting reference, and any one operation of dehumidification / ventilation or stop depending on the humidity information of the outdoor air detected by the outdoor humidity detection means 17. The mode is instructed to the control means 18. In this way, it makes up for the deficiency of judgment based only on the outdoor temperature. In other words, judgment based only on the outdoor temperature may result in dehumidifying mode operation even when the outdoor temperature is low. In this respect, according to this embodiment, the dehumidifying mode operation is executed only when the outdoor air has a high humidity equal to or higher than the reference value, and it is possible to accurately select either the stop mode operation or the ventilation mode operation when the humidity is low. It is a thing.

Further, at this time, it is of course possible that the calculating means 19 instructs the control means 18 to perform the dehumidifying mode operation when the outside air is above the set humidity and the stop mode operation when the outside air is below the set humidity. In this case, when the outside air is less than the set humidity, such as during fine weather or in winter, the dehumidifying means 14 is activated when the humidity is higher than the set humidity to dry the high-humidity air outdoors. The air is blown below the floor.

Further, at this time, the operation mode of the calculating means 19 can be determined by dehumidifying mode operation when the outside air is at or above the set humidity, and by ventilation mode operation when the outside air is below the set humidity. That is, when the outside air is below the set humidity and the underfloor is in a high humidity state, the underfloor can be effectively dried by executing this ventilation mode operation. When the outside air has a humidity higher than the set humidity, the dehumidifying means 14 is operated as in the above embodiment.

Further, both the outdoor temperature detecting means 16 and the outdoor humidity detecting means 17 may be used.
In this case, since the calculation means 19 has both the set temperature and the set humidity, it depends on the temperature and humidity conditions of the outside air, that is, high temperature / high humidity / high temperature / low humidity / low temperature / high humidity / low temperature / low humidity. Each operation mode of dehumidification / ventilation / stop can be selected according to the case of.

At this time, the operation mode of the calculating means 19 can be determined by the dehumidifying mode when the outside air is at the set temperature or more and the set humidity or more, and the stop mode in other cases. In such a case, the operation is stopped during low temperatures such as winter when rot fungi and mold are not active, and in the dry state where the relative humidity of the outside air is less than the set humidity,
Highly efficient operation can be performed by operating the dehumidifying means 14 only when the outside air is at the set temperature or higher and the set humidity or higher temperature and high humidity.

At this time, the operation mode of the calculating means 19 is determined by the stop mode when the outside air is below the set temperature, the dehumidification mode when the outside air is above the set temperature and above the set humidity, and the ventilation mode when the outside air is above the set temperature and below the set humidity. It can also be in mode. In such a case, the operation is stopped at low temperatures such as winter when rotting fungi and mold are hard to operate, and when the weather is fine, the outside air of low humidity is blown below the floor to dry the floor, and when the weather is high, such as when it is raining. In this case, the dehumidifying means 14 can be operated to blow dry air under the floor, and highly efficient operation can be performed.

At this time, the operation mode of the calculating means 19 is determined by the dehumidifying mode when the outside air is above the set humidity, the ventilation mode when the outside air is below the set humidity and above the set temperature, and the stop mode when the outside air is below the set humidity and below the set temperature. You can also do it. That is, when the outside air is in a low temperature and high humidity state, a problem may occur in the stop mode. In other words, in the winter, the room is heated using a stove and the like, which naturally raises the room temperature and makes the room comfortable, but at the same time, the heating causes dew condensation in the air. It is a thing. This condensed water penetrates under the floor and increases the humidity inside the floor. The present embodiment assumes such a case, and executes the ventilation mode operation in the low temperature and high humidity state, and sets the stop mode only when the outside air is in the low temperature and low humidity state.

At this time, the operating time zone may be set by the time keeping means (not shown) that the arithmetic means 19 normally has, and the stop time zone may be set accordingly. That is, if the operation time zone is set to daytime, the nighttime is set as the stop time zone, and the operation at nighttime can be avoided to realize a device having a high power saving effect.

The ventilation / dehumidifying device used in each of the above-mentioned embodiments does not have to be attached to only one place, and the effect can be more enhanced if it is installed at a plurality of places.

[0035]

According to the invention described in claim 1, the dehumidifying means for dehumidifying the moisture in the air, the ventilation means for blowing the outside air under the floor, and the outdoor temperature detecting means for detecting the outdoor temperature or the outdoor humidity are provided. At least one of the outdoor humidity detecting means for detecting, a calculating means for determining one operation mode of dehumidification / ventilation or stop according to the information of the detecting means, and a control means for controlling each means. As a configuration having the above, the present invention realizes a ventilation / dehumidification device in which operation modes of dehumidification / ventilation / stop can be selectively used depending on temperature conditions or humidity conditions of the outside air.

In the invention described in claim 2, the calculating means is
The dehumidification mode is determined when the temperature of the outdoor air is higher than the set temperature, and the stop mode is determined when the temperature is lower than the set temperature.The dehumidification mode operation is executed except when the temperature is low where rotting fungi and molds are hard to operate, and dry air is put under the floor. The ventilation and dehumidifying device is designed to be dried under the floor to prevent the decay fungi and mold from operating.

In the invention described in claim 3, the calculating means is
As a configuration that determines one of the dehumidification / ventilation or stop operation modes based on the humidity information of the outdoor air, the dehumidification mode operation is performed when the outdoor air is high humidity, and the stop mode operation or the ventilation mode operation is performed when the outdoor air is low humidity. It realizes a ventilation and dehumidifying device that can be executed and dry the underfloor to make it difficult for decay fungi and mold to act.

In a fourth aspect of the present invention, the calculating means determines the dehumidifying mode operation above the set humidity and the stop mode operation below the set humidity. The present invention realizes a ventilation / dehumidifying device that dries outdoor high-humidity air and blows it under the floor to dry the underfloor so that decay fungi and mold are hard to act.

According to a fifth aspect of the present invention, the calculating means determines the dehumidifying mode operation above the set humidity, and the ventilation mode operation below the set humidity, in the case where the humidity of the outside air is low and the humidity under the floor is high. It will realize a ventilation and dehumidifying device that will dry the underfloor and make it difficult for decay fungi and mold to act.

According to a sixth aspect of the invention, the calculation means is
As a configuration that determines one operation mode of dehumidification / ventilation or stop based on the information of temperature and humidity of outdoor air,
Dehumidification mode / ventilation mode / corresponding to high temperature / high humidity / high temperature / low temperature / low temperature / high humidity / low temperature / low humidity
This is a ventilation dehumidification device that selects a stop mode and dries the underfloor to make it difficult for decay fungi and mold to act.

In the invention described in claim 7, the calculation means is
Dehumidification mode operation is determined above the set temperature and above the set humidity, and stop mode operation is determined in other cases.When the temperature is low in winter or when the outside air is below the set humidity, the operation is stopped and the outside air is set to the set temperature. When the temperature is high and the humidity is higher than the set humidity, the dehumidification mode operation is performed to dry the underfloor to realize a ventilation dehumidification device that makes it difficult for decay fungi and mold to act.

In the invention described in claim 8, the calculating means is
When the temperature is below the set temperature, the stop mode operation is performed.When the temperature is above the set temperature and above the set humidity, the dehumidification mode operation is performed. When the temperature is above the set temperature and below the set humidity, the ventilation mode operation is determined. However, when the outside air is humid, such as when it is raining, the outside air is dried by the dehumidifying means and blown under the floor, and it is stopped at low temperature, and not only dehumidification but also ventilation and stop are put to efficiently dry the underfloor. However, it is intended to realize a ventilation and dehumidifying device that makes it difficult for rot fungi and mold to act.

In the invention described in claim 9, the calculating means is
The dehumidification mode operation is set above the set humidity, the ventilation mode operation is set below the set humidity and above the set temperature, and the stop mode operation is set below the set humidity and below the set temperature. A ventilation dehumidifier that can be applied not only when it is damp, but also when it is cold and humid so that it can dry the underfloor even if the underfloor humidity rises due to the effects of indoor heating, etc. To do.

According to a tenth aspect of the present invention, the calculating means has a time measuring means, and the stop mode operation is determined except for the set time zone. The daytime zone is the operation time zone and the nighttime is the stop time zone. It realizes a ventilation and dehumidifying device that can dry the underfloor while saving electricity and keeps the decaying fungi and mold in a less active state.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a ventilation and dehumidifying apparatus according to an embodiment of the present invention.

FIG. 2 is a humidity change characteristic diagram showing changes in the relative humidity of the outside air on the same day.

FIG. 3 is a cross-sectional view showing a configuration of a conventional underfloor ventilation device.

FIG. 4 is a connection diagram showing the same electric wiring.

[Explanation of symbols]

 14 Dehumidification Means 15 Ventilation Means 16 Outdoor Temperature Detecting Means 17 Outdoor Humidity Detecting Means 18 Control Means 19 Computing Means

 ─────────────────────────────────────────────────── ─── Continued front page (72) Inventor Kunio Ogita 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (72) Makoto Nishimura 1006 Kadoma, Kadoma City, Osaka Matsushita Electric Industrial Co., Ltd. 72) Inventor Tohru Atsumi 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd.

Claims (10)

[Claims] 1. A dehumidifying unit for dehumidifying water in the air, a ventilation unit for blowing outside air under the floor, an outdoor temperature detecting unit for detecting an outdoor temperature, and an outdoor humidity detecting unit for detecting an outdoor humidity. A ventilation / dehumidifying device having one of the detection means, a calculation means for determining one operation mode of dehumidification / ventilation or stop based on the information of the detection means, and a control means for controlling each means. 2. The ventilation / dehumidifying device according to claim 1, wherein the calculation means determines the dehumidifying mode when the temperature of the outdoor air is equal to or higher than the set temperature and the stop mode when the temperature of the outdoor air is lower than the set temperature. 3. The ventilation / dehumidification device according to claim 1, wherein the calculation means determines one of the operation modes of dehumidification / ventilation or stop according to humidity information of outdoor air. 4. The ventilation / dehumidifying device according to claim 3, wherein the calculating means determines the dehumidifying mode operation at a set humidity or higher and the stop mode operation at a set humidity or lower. 5. The ventilation / dehumidification device according to claim 3, wherein the calculation means determines the dehumidification mode operation when the humidity is equal to or higher than the set humidity and the ventilation mode operation when the humidity is lower than the set humidity. 6. The ventilation / dehumidification device according to claim 1, wherein the calculation means determines one of the dehumidification / ventilation and stop operation modes based on the information on the temperature and humidity of the outdoor air. 7. The ventilation / dehumidifying device according to claim 6, wherein the calculating means determines the dehumidifying mode operation when the temperature is equal to or higher than the preset temperature and the humidity is equal to or higher than the preset humidity, and the stop mode operation in other cases. 8. The calculating means determines stop mode operation below a set temperature, dehumidification mode operation above a set temperature and above a set humidity, and ventilation mode operation below a set temperature and below a set humidity. Ventilation dehumidification device described. 9. The calculating means determines the dehumidifying mode operation when the humidity is equal to or higher than the set humidity, the ventilation mode operation when the temperature is lower than the set humidity and equal to or higher than the set temperature, and the stop mode operation when the temperature is lower than the set humidity and lower than the set temperature. Ventilation dehumidification device described. 10. The ventilation / dehumidifying device according to claim 1, wherein the calculating means has a clocking means and determines the stop mode operation except during a set time period.