JP3209827B2 - Ventilation equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ventilation device for a room such as a house, and more particularly to a ventilation device having an active device operation function.

[0002]

2. Description of the Related Art Recent developments in building materials / construction methods have generally improved the airtightness of houses, and when appropriate ventilation is not provided correspondingly, the relative humidity of room air can be reduced especially in winter. There is a possibility that dew condensation or the like may occur due to an excessively large amount. On the other hand, the conventional warning means using only the temperature sensor is liable to malfunction. Therefore, by automatically turning on / off the ventilation fan using the dew sensor. For example, Japanese Patent Application Laid-Open No. Sho 64-41739 discloses a proposal for preventing dew condensation and contributing to improving the health of residents.

[0003] This proposed technique is provided with a dew sensor and a ventilation fan, and is configured to control the operation of the ventilation fan based on a detection signal of the dew sensor.

[0004]

However, in this type of prior art, the ventilation fan only exhausts contaminated air or high-humidity air. For example, natural air is supplied from a gap in a door of a room or the like, and in general, good air supply / exhaust balance cannot be obtained and effective ventilation is often not performed.

In other words, the capacity of the ventilation fan for exhausting air is not sufficiently utilized, so that not only the ventilation efficiency is poor, but also the operation noise of the ventilation fan is increased, which causes discomfort in a room environment. Furthermore, for example, when there is a bathroom nearby, there is a possibility that high-humidity air may be introduced through a gap in the door.

For the purpose of preventing dew condensation, which is the original purpose, dehumidification can be performed regardless of the external air environment by selectively controlling the operation of the ventilation fan and the dehumidifier. However, when the outside air environment is poor, there is a possibility that, for example, in a house facing a road with a lot of traffic, there may be a problem that exhaust gas or the like of an outside car is introduced by a ventilation fan operation.

The present invention has been made in view of the above-mentioned problems of the conventional proposals, and performs air supply control to balance air supply and exhaust so that efficient ventilation is performed. Even if the surrounding air environment is poor, it is possible to eliminate indoor air pollution, and also to eliminate the accumulation of hot air during the absence in summer and, for example, to accelerate the effect of air conditioning after returning home The purpose is to provide ventilation equipment.

[0008]

Therefore, according to the present invention, this type of ventilator is used to operate the indoor air exhaust fan when the ventilation effect cannot be obtained by the ventilation with the indoor air exhaust fan. Stop, close the air supply port, and configure to operate the air purifier, or if the ventilation with the ventilation fan means for indoor air discharge does not provide a dehumidifying effect,
The above object is achieved by stopping the operation of the ventilation fan means for discharging indoor air, closing the air supply port, and operating the dehumidifying means.

[0009]

According to the structure of the present invention described above, the automatic ventilation operation by the sensor means can be effectively performed, and the contamination of the indoor air can be prevented even when the surrounding air environment is poor. In addition, it is possible to eliminate excess moisture in the room that causes dew condensation, and in this case, moisture can be removed regardless of the surrounding humidity environment. Still further, it is possible to eliminate the build-up of hot air during the absence in summer and to eliminate discomfort after returning home, for example, and to speed up the air conditioning effect.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described based on three embodiments: (First Embodiment) FIGS. 1 and 2 are a schematic diagram of a system of a first embodiment of a ceiling adapter type and a block diagram of its configuration. Is shown.

In FIG. 1, reference numeral 1 denotes a first sensor unit including a miscellaneous gas sensor 1a, an oxygen sensor 1b, a CO2 sensor 1c, a temperature sensor 1d, a humidity sensor 1e, and the like, and the quality of indoor air (contaminated state, temperature and humidity). Is installed in the optimal place to accurately detect 2 is an adapter, commercial AC1
A 00 V power supply is connected, and controls the operation of the ventilation fan 4, the opening / closing operation of the air supply port 5, and the operation control of the air purifier 6 and the dehumidifier 7. The adapter 2 is provided with a second sensor unit 2A, and each sensor 1a is similar to the first sensor unit 1.
~ 1e. The operation of the ventilation fan 4 and the opening and closing of the air supply port are controlled by a remote control switch 3 provided with control operation display means.
Is a drive control by power supply, and FIG. 2 shows a drive circuit 8 thereof. The operation of the air purifier 6 and the dehumidifier 7 is performed using a control interface, for example, an HA terminal or the like.

When accurate indoor air quality detection is possible only with the first sensor unit 1, the second sensor unit 2A can be omitted, and conversely, accurate indoor air quality can be obtained only with the second sensor unit 2A. When detection is possible, the first sensor unit 1 does not need to be installed. Alternatively, it may be divided so that each sensor is most easily detected. For example, miscellaneous gas sensor 1a, oxygen sensor 1b, C
Each sensor for detecting air pollution such as the O2 sensor 1c
The temperature sensor 1d and the humidity sensor 1 are installed in the second sensor unit 2A in the adapter 2 on the ceiling surface where air pollution is likely to spread quickly.
e and the like are installed as the first sensor unit 1 on a wall surface close to the sense of the human body.

When it is determined from the output of each of these sensors that the indoor air quality has reached a preset pollution level, the operation of the ventilation fan 4 and the opening / closing control of the air supply port 5 are automatically performed. In addition, the outdoor air environment is poor, and outdoor contaminated air may be supplied by automatic ventilation and indoor air may not be able to be cleaned. When it is detected by the sensor and it is determined that the ventilation alone is invalid, the operation of the ventilation fan 4 is stopped, the air supply port 5 is closed, and the operation of the air cleaner 6 is started.

[0014] In addition to discharging contaminated air, it also automatically discharges excess moisture that causes condensation. In this case, the dew point temperature is predicted by the temperature / humidity sensor 1d / 1e,
Automatically ventilates when condensation conditions are met. In this case as well, since the humidity of the outside air is high in rainy weather or the like, when the dehumidifying effect cannot be obtained only by ventilation, the ventilation is stopped and the dehumidifier 7 is operated.

Further, the hot air in the summer is also a temperature sensor 1d.
Accordingly, when the temperature exceeds a predetermined temperature, ventilation is started to eliminate the accumulation of hot air, and for example, discomfort when returning home or the like can be eliminated. In addition, instead of the dehumidifier 7, an air conditioner (air conditioner) (not shown) may be controlled to dehumidify. in this case,
Since the operating condition of the air conditioner can be monitored with the adapter 2,
When the operation of the air conditioner is manually started during the automatic ventilation operation, the ventilation time can be increased but the effectiveness of the air conditioner does not deteriorate by reducing the ventilation volume.

(Second Embodiment) FIGS. 3 and 4 show a second embodiment of the wall switch type shown in FIGS.
2 is shown. The same (corresponding) components as those in FIGS. 1 and 2 are denoted by the same reference numerals. The operation / action is the same as that of the first embodiment, and therefore, the duplicated description will be omitted.

(Third Embodiment) FIGS. 5 and 6 are views corresponding to FIGS. 1 and 2 of a third embodiment of a device built-in type, and each component and operation / action are also in the second embodiment.
The description is omitted because it is the same as in the embodiment. Reference numeral 9 denotes a ventilation fan motor.

[0018]

As described above, according to the first aspect of the present invention, by controlling the switching between the operation of the ventilation fan and the operation of the air purifier, contamination of the indoor air can be prevented even when the surrounding air environment is poor. be able to.

Further, according to the second aspect of the present invention, the excess humidity in the room which causes dew condensation can be eliminated. In this case as well, the switching control of the ventilation fan means and the dehumidifier can control the humidity regardless of the surrounding humidity environment. Can be excluded. Still further, it is possible to eliminate the build-up of hot air during the absence in summer and to eliminate discomfort after returning home, for example, and to speed up the effect of air conditioning.

[Brief description of the drawings]

FIG. 1 is a schematic diagram of a system according to a first embodiment.

FIG. 2 is a block diagram showing the same configuration as above.

FIG. 3 is a schematic diagram of a system according to a second embodiment.

FIG. 4 is a block diagram showing the configuration of the embodiment;

FIG. 5 is a schematic diagram of a system according to a third embodiment.

FIG. 6 is a block diagram showing the configuration of the above.

[Explanation of symbols]

 1 / 2A First / second sensor unit 2 Adapter 3 Remote control switch 4 Ventilation fan 5 Air supply port 6 Air purifier 7 Dehumidifier

Claims (2)

(57) [Claims] 1. A sensor for detecting a state of air quality in a predetermined portion of a room, a ventilating fan for discharging room air, a room air supply port, and a device for purifying contaminated air of the room air. Air purifying means, and operation of the ventilation fan,
Control means for controlling the opening and closing of the air supply port and the operation of the air purifier, wherein when the ventilation effect cannot be obtained by ventilation with the ventilation fan means for indoor air discharge, the indoor air discharge means A ventilation device, wherein the operation of the ventilation fan means is stopped, the air supply port is closed, and the air purifier is operated. 2. A ventilating fan for discharging indoor air, comprising: dehumidifying means for lowering the humidity of the indoor air; and control means for driving and controlling the operation of the ventilation fan, the opening and closing of the air supply port, and the operation of the dehumidifying means. The method according to claim 1, wherein when the dehumidifying effect cannot be obtained by the ventilation by the means, the operation of the indoor air exhaust ventilation fan means is stopped, the air supply port is closed, and the dehumidifying means is operated. The ventilation device according to 1.